Presidential-hopeful Donald Trump just unloaded a penthouse he never actually lived in for a cool $21 million. 

Seeing as Trump never settled in here, the Trump Park Avenue unit looks nothing like his gold-encrusted pad at Trump Tower.

Actually, it looks more like Ivanka Trump's apartment, also located at Trump Park Avenue. 

The penthouse has been owned by Trump since he purchased the building (a hotel which he converted to a luxury condo building) in 2001. 

According to The Wall Street Journal, the home was bought by a US couple with an international real estate portfolio. 

SEE ALSO: The First Family's former summer rental just hit the market for $22.5 million

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The fact that Trump never lived in the apartment explains its understated décor. His primary residence at Trump Tower is drenched in gold, marble, and crystals.

The clean white furniture, well-chosen art, and accent pieces have Ivanka's good taste written all over them. Her own apartment in the building has a similar style of décor.

The 6,200-square-foot penthouse — accessible via a private elevator — sits on the 24th floor of the 32-story Trump Park Avenue. It was previously listed at $24.995 million.

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A shapely, feng shui marvel with a "barbecue tower" has hit the market for a whopping $53 million in Malibu, California. 

The beachfront listing's asking price far exceeds those of nearby Pacific Coast Highway properties, which average between $15 and $25 million, according to Zillow.com.

The five-bedroom house was custom designed by modernist architect Ed Niles in collaboration with the homeowner, Dr. Wei-Tzuoh Chen, who spent $15 million to build the feng shui home of his dreams. Ari Afshar of The Agency and Aitan Segal of Berkshire Hathaway HomeServices California Properties hold the listing. 

Keep scrolling for an inside-out tour of this highly unique Malibu home. 

SEE ALSO: A rare beachfront estate in West Maui with a completely feng shui design just got a $4 million price chop

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Built in 2006, the home took six years to construct.

About that barbecue tower: it's the red red-framed, glass structure you see to the right. Dr. Chen built it as a casual dining area where he and his family could barbecue and enjoy the ocean view without feeling the gusty winds or being too exposed to the elements.

Twenty-nine-foot ceilings, glass window walls, and steal beams all contribute to this architectural masterpiece.

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Adam Singolda, the CEO of Taboola — the online content auto-recommendation platform valued at more than $1 billion — has a couple of new toys: Drones.

Almost every spare moment he gets, Singolda is flying and filming, so it made sense to take the drones for a spin around the office, creating a video rather than the standard still-image office tour — which Singolda thinks is "a bit '90s."

We've pulled GIFs from the best bits of the video around Taboola's swanky NYC digs, which feature a golf course, piano, fish tank, and lots of branded furniture.

Warning — as these are GIF files, please wait a little while for some of them to load.

Disclosure: Business Insider is a Taboola customer.

SEE ALSO: Twitter moved into a new office in Canada, and it's very Canadian

And we're off! Singolda revs the DJI Phantom 3 into action.

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A quick spin around reception.

"We do not expect to see sustained meaningful growth in [monthly active users] until we start to reach the mass market,"Twitter's interim CEO Jack Dorsey warned. "We expect that will take a considerable period of time."

This gloom dominated the tone of Twitter's earnings announcement. Despite better-than-expected second-quarter profits, Twitter shares plummeted.

"We have not communicated why people should use Twitter nor made it easy for them to understand how to use twitter," Dorsey added.

"The bottom line for TWTR is that after nine years of its existence, my mother still doesn't understand what it means to 'hashtag' something, but she does understand what it means to 'like' something,"Macquarie analyst Ben Schachter said. "That is to say that Twitter is still too difficult to use and inaccessible to too many."

The stock closed at $36.56 on Tuesday and plunged 12% to around $32.15 after the news. Is it time to buy?

Wall Street analysts covering Twitter are split. Of the 16 research notes read by Business Insider, eight analysts maintained a "buy" or "outperform" rating on the stock. The other eight were neutral. No one is saying to sell.

Here's some of what they had to say:

SEE ALSO: Here's what 23 Apple analysts are saying about the sales flop and the plunging stock

Jefferies: BULLISH

Rating: Buy

Price Target: $56 (revised down from $60)

Comment: "We remain bullish on the prospects of LT user and engagement improvement as TWTR has, and will continue to, iterate the product. Improved curation, coming in the form of Project Lightning in fall (see pg 2) and shifts away from the reverse chronological timeline are the next steps in attempting to execute on Dorsey's plan. Additionally, TWTR will be ramping unified mktg efforts to help close the gap between its 95% aided global awareness and 30% penetration in top markets."

Pacific Crest: BULLISH

Rating: Overweight

Price Target: $52

Comment: "Per usual, Twitter beat Q2 estimates but missed user targets. Monetization bulls and user bears have another reason to stay entrenched in this battleground stock. Results were close enough to normal that the announcement of the new CEO, which we expect in Q4, should be the next catalyst for long-term sentiment; we remain positive on TWTR in front of a new direction."

Deutsche Bank: BUY

Rating: Buy

Price Target: $50

Comment: "Our positive stance on TWTR is unchanged following 2Q results — the company is iterating on product in hopes of increasing the user base but not yet showing traction, and items in management's control like ad revenue are exceeding expectations. The 40%+ correction over the past quarter factors in management's muted tone toward growing MAUs, from here at 6.5x revenue we view the risk/reward as favorable. User growth will cause shares to re-rate higher as has been the case historically, but timing is unclear based on the updated 2Q commentary, and we are waiting patiently."

Sleep. We can't live without it, and we can't function without enough of it. 

But for most of us, getting enough sleep is a problem. 

Forty million Americans suffer from chronic sleep disorders each year, and another 20 million experience occasional sleeping problems, according to National Institute of Neurological Disorders and Stroke.

But thanks to fitness trackers like Jawbone UP, and sleeping-aid apps like Sleepio, we have all sorts of data on how we sleep and how to improve our rest.

SEE ALSO: The Most Popular Times To Have Sex, And Other Fun Facts About Making Whoopee

More sleep = a happier person. People who sleep between eight and 9.5 hours during the night tend to wake up happier.

Source: Jawbone.

Read more.

Almost nobody regularly sleeps over eight hours a night. Most of the nation sleeps less than 7.5 hours a night.

Source: Jawbone. 

Read more.

The people with the latest bedtime: Brooklyn at 12:07 a.m.

Source: Jawbone.

Read more.

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The retail sector is undergoing a major transformation driven by digital. Technology is changing the way people shop, as well as how retailers operate. 

BI Intelligence has created a slide deck highlighting the biggest e-commerce trends in retail. Some of the topics we cover in the deck include:

• The size of the retail and e-commerce markets.
• The breakdown of e-commerce sales by product category. 
• How legacy retailers are faring.
• New e-commerce players.
• Disrupting last-mile delivery. 

The companies mentioned in this year’s presentation include:

Walmart, Target, Amazon, eBay, Google, Uber, JCPenney, Gap, Kroger, Kohl’s, Macy’s, Safeway, SuperValu, Albertsons, Blue Apron, HelloFresh, Plated, Instacart, FreshDirect, Peapod, Fresh Market, Harris Teeter, Whole Foods, Birchbox, Olay, L'Oreal, Avon, Ulta, CVS, Walgreens, Sephora, Postmates, FedEx, UPS, US Postal Service

BI Intelligence is a research and analysis service focused on mobile computing, digital media, payments, and e-commerce. Only subscribers can download the individual charts and datasets in Excel, along with the PowerPoint and PDF versions of this deck. Please sign up here.

This is Jia Jia, and on Tuesday she turned 37 years old. To celebrate, her caregivers gave her a vegetable ice cake and, her favorite, bamboo.

Jia Jia is a giant panda in Hong Kong, and she's the oldest living panda in the world — that's a record she's been carrying around for a while.

She earned her second Guinness World Record on Tuesday, when she officially became the oldest panda to ever live in captivity.

What's more, her caregivers say she's in great health for her old age.

For a panda, turning 37 is a very big deal. It's similar to a human living to be over 100 years of age. Here's Jia Jia's story and what she does on a daily basis as she nears record-breaking history.

SEE ALSO: An African python dies prematurely after eating a 30-pound porcupine, but that's not what killed it

CHECK OUT: Amazing footage of sharks swimming in scalding waters around a volcano is completely baffling scientists

In 1978, Jia Jia was born in the wild of China. She was later captured, and in 1999 was sent to Hong Kong as a gift.

Right now, she lives at Ocean Park, a theme park in Hong Kong. The park's animal facility is the only one outside of the Americas recognized for its superior animal care by the Association of Zoos and Aquariums.

For a panda, turning 37 is a remarkable achievement. “It is rare for pandas to live to this age,” Grant Abel, the park’s director of animal care, told Reuters. “It’s probably equivalent to someone (a human) who would be over a hundred years old." Jia Jia does have some conditions that naturally come with age, but her caregivers say she's in great health. Here she is happily munching on some bamboo.

NOW WATCH: Scientists are astonished by these Goby fish that can climb 300-foot waterfalls

Last month we announced our first ever Instagram contest, #BIbestviews.

The rules were simple: Submit incredible pictures of spectacular views around the world.

Because we received so many entries, we decided to break down the winners into different categories. 

Here, we present the winners in the mountain category. These images have us itching to tie up our hiking boots, grab our camping gear, and start trekking.

Didn't submit a mountain view? Not to worry, we'll be releasing more winners in the next few weeks, so keep an eye out. Congratulations to all those selected, and thanks for your submissions!

NOW SEE THE WINNERS IN THE BEACH CATEGORY: 20 unbelievable views of the beach from Business Insider readers

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While visiting the Lofoten Islands in Norway, @yanadelman snapped this gorgeous image of the mountains, which Lofoten is well known for.

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@omallikins went river rafting with the mountains right in view, in Glenorchy, New Zealand.

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@galgalkay got some fresh powder on the slopes in St. Anton am Arlberg in New Zealand.

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Choosing the right credit card can be a stressful process. With an overwhelming amount of choices out there, it's difficult to know which best suits your needs.

Personal finance and credit card comparison site NerdWallet selected the best credit cards out there for everyone — from college students to jetsetters to those with less-than-ideal credit.

Scroll down to see their top picks.

If you're still having a hard time choosing after checking out the roundup, try NerdWallet's tool to help you find the perfect credit card for your lifestyle.

SEE ALSO: Why There's No Such Thing As Too Many Credit Cards

Best for people who don't want to pay an annual fee: Citi Double Cash Card

Annual fee: $0

Purchase APR: 0% APR for 15 months. After that, variable rate from 12.99% to 22.99%.

Why it's best: Earn unlimited 1% cash back on all your purchases, and an additional 1% cash back when you pay them off. You choose whether your cash back comes as statement credit, a gift card, or a check.

Apply here.

See more cards with no annual fee.  

Best for everyday use: Blue Cash Preferred Card from American Express

Annual fee: $75

Purchase APR: 0% intro APR for 15 months. After that, variable rate from 12.99% to 21.99%.

Why it's best: You can earn 6% cash back on groceries (up to $6,000 spent annually) and 3% back at gas stations. Earn 3% cash back at select department stores and 1% on everything else.

Apply here.

See more cards for everyday use.

Best for travelers: Barclaycard Arrival Plus World Elite MasterCard

Annual fee: First year is free, then $89 per year.

Purchase APR: 0% APR for 12 months. After that, variable rate from 15.99% to 19.99%.

Why it's best: Earn two miles on every $1 that you spend, with no limit to how many miles you can earn. No foreign transaction fee; the sign-up bonus will earn you 40,000 miles when you spend $3,000 or more on purchases in your first 90 days as an account holder. 

Apply here.

See more cards for travelers.

Europe has some of the best business schools in the world. But only one can come out on top of any ranking. In this list, we're looking at the schools which provide the best Master of Business Administration (MBA) degrees.

QS's Top MBA service compiles the rankings, and the latest are for 2014-15. 

The methodology is heavily tipped towards the school's reputation among businesses, with 85% of the criteria down to a survey of employers.

A further 15% is determined by the school's academic reputation alone.

Take a look to see which countries, cities and individual schools come out on top.

30. Henley Business School, University of Reading — though it's not the best-known, Henley says it's the world's third biggest provider of MBA education.

29. Pantheon-Sorbonne University — this school is ranked as the best in France for economics.

28. Business School Lausanne — Switzerland is known for its business education, and BSL is one of two schools from Lausanne to make it onto the list.

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Cara Delevingne has been one of the biggest models for years now. She has garnered fame and a massive social media following, with nearly 16 million Instagram followers and 3.1 million Twitter followers. 

Now, she is her leap to Hollywood. Her first major leading role is in "Paper Towns," which was released in theaters Friday.

Prior to "Paper Towns,"Delevingne had roles in smaller films like" The Face of an Angel" and "Anna Karenina," as well as some other short films and music videos.  

She has already been cast in six more roles over the next two years, including as a main part of the cast for the highly anticipated "Suicide Squad" in 2016.

Delevingne will turn 23 next month, but she already has accomplished more than some ever do. Learn about how she got to where she is now.

Cara Delevingne - pronounced like “della-veen” - was born in London on August 12, 1992.

Her family history is extensive. She was born to Pandora and Charles Delevingne. She has two sisters, Poppy and Chloe. Poppy, pictured on the left below, is also a model. Her grandfather was a publishing executive and English Heritage chairman. Her grandmother was lady-in-waiting to Princess Margaret. Her godfather is a Condé Nast executive and her godmother is actress Joan Collins.

She went to Francis Holland School for girls in central London before she was 16 and then moved to Beadles School in Hampshire in the south east of London.

Global ad spend in 2014 rose 3.9% to $513 billion, according to GroupM — and ad agency bosses saw their compensation soar last year too.

Like previous years, our ranking of the richest people in advertising is predominantly made up of white men.

One of them is even subject to an SEC investigation into his income.

There's just one woman on the list.

Methodology: Our ranking looked at SEC filings, taking account of total annual 2014 compensation, including salary, stock awards, option awards, and other incentives. That's an obvious flaw because a lot of people on this list hold a lot of their net worth in stock they have accumulated over previous years, and through other assets and investments.

This list is by no means extensive: We chose to look at public companies only. We also only looked at pure-play advertising agencies: Otherwise advertising execs at tech companies like Google and Facebook, or brand marketers would surely make the list too. Our rankings also begin with those who earn $2 million and above (there are plenty of execs in advertising who earn over $1 million.)

SEE ALSO: The 20 richest people in ad tech, ranked by income

17. Andrew Bonzani, Interpublic general counsel and secretary

Compensation: $2,295,124

Notes: Bonzani's pay rose 51% year-on-year. The bulk of his pay last year was made up of stock awards and non-equity incentive plan compensation.

16. Kevin Roberts, executive chairman of Saatchi & Saatchi

Compensation: ($2,299,314) €2,083,118

Notes: In addition to his salary, Roberts also received €23,516 in "benefits in kind" in 2014.

15. Lori Senecal, global CEO of Crispin Porter + Bogusky

Compensation: $2,345,781

Notes: Senecal was president and CEO of the MDC Partner Network when she received this total compensation for 2014. She moved over to her new role in March of this year.

Her total compensation included a huge $159,034 automobile allowance.

If there's one habit most super-successful people share, it's this: They read. A lot.

Many of them have shared the books that helped shape them personally and professionally. If you want to emulate these titans of industry, reading their faves seems like a good place to start.

From classic literature to business management guides, we rounded up their top picks, so you can start stocking your shelves.

'The Intelligent Investor' by Benjamin Graham

Among Wall Streeters, Graham is known as the father of value investing. Billionaire investor Warren Buffett credits Graham's book with laying the foundation for his investment philosophy when he read it at age 19.

"To invest successfully over a lifetime does not require a stratospheric IQ, unusual business insights, or inside information,"Buffett said. "What's needed is a sound intellectual framework for making decisions and the ability to keep emotions from corroding that framework. This book precisely and clearly prescribes the proper framework. You must provide the emotional discipline."

Buy it here >>

'Making the Modern World' by Vaclav Smil

This book by an environmental sciences professor focuses on the costs of increasing material consumption and the potential for dematerialization in the future.

Bill Gates, estimated to be the richest man on earth, calls Smil his favorite author and says the book gave him new insight into the materials that make modern life possible.

"It might seem mundane, but the issue of materials — how much we use and how much we need — is key to helping the world's poorest people improve their lives,"Gates writes."Think of the amazing increase in quality of life that we saw in the United States and other rich countries in the past 100 years. We want most of that miracle to take place for all of humanity over the next 50 years."

Buy it here >>

'The Hitchhiker's Guide to the Galaxy' by Douglas Adams

This work of science fiction helped billionaire entrepreneur Elon Musk through an existential crisis during his adolescence. In the book, a supercomputer deduces the answer to a meaningful life is the number 42, though it's not clear what the original question was.

"It highlighted an important point, which is that a lot of times the question is harder than the answer," Musk said in an interview. "And if you can properly phrase the question, then the answer is the easy part. So, to the degree that we can better understand the universe, then we can better know what questions to ask."

Buy it here >>

Windows 10, the latest version of Microsoft’s iconic operating system, launched on Wednesday. Microsoft has given the interface several nips, tucks and full-on reconstructive surgeries since the first version released some 30 years ago in the early days of personal computing.

Flip through the slides above to see how Windows has evolved new features, typefaces and designs, while retaining that essential concept of the computer screen as a “window” onto the computer’s features.

It certainly captures the spirit of the software better than Microsoft’s original codename, “Interface Manager.”

SEE ALSO: You're going to love Windows 10

Windows 1.0: The seminal version of Windows released on November 20, 1985. Users could run programs in multiple windows simultaneously, sparing them the nuisance of quitting one application before launching another one.

Windows 95 released on August 24, 1995, equipping users with their first Start menu, as well as minimize and maximize buttons. Roughly 8 in 10 of the world's PC's were running Windows at the time of its release.

Windows 2000 launched on February 17, 2000. Rocker Carlos Santana performed his song "Smooth" at the launch party, but the rollout proved bumpy due to several hack attacks that made headline news. Microsoft was forced into defense, releasing security patches throughout the product's lifecycle.

NOW WATCH: Scientists are astonished by these Goby fish that can climb 300-foot waterfalls

Luxury, history, style—there's no place like Italy.

And there are no places in Italy like these amazing hotels, named the best by our Condé Nast Traveler readers.

From the ivy-covered Hotel Raphaël to the Grand Hotel Majestic on Lake Maggiore, here are the best hotels in Italy. 

SEE ALSO: The 10 best hotels in the world

DON'T FORGET: Follow Business Insider's Lifestyle page on Facebook!

Boscolo Venezia

Its location away from the Grand Canal, in a relatively quiet part of Cannaregio, is a good thing: being far from the crowds means an infinitely more peaceful experience.

In a city famous for water, the hotel's amazing, 21,000 square foot garden offers a unique terra firma touch. Plus, a free shuttle service will get you to St. Mark's and other attractions daily.

Readers' Rating: 81.096

Westin Europa & Regina, Venice

Comprising of five interconnected palazzi—it is the amalgamation of the former Hotel Britannia and Hotel Regina—this hotel still manages to feel secluded despite its size and renown.

It’s tucked away inside a leafy, hidden courtyard, and guests arrive via a private jetty on the Grand Canal. Its 185 guest rooms are Venetian-inspired, many with private terraces and views over the Canal.

Readers' Rating: 82.100

Luna Hotel Baglioni, Venice

This historic, 68-room hotel in the heart of the city is housed in an aristocratic Venetian palace dating back to 1118.

Though it’s been through countless transformations over the years, it still brims with original details: ceiling frescoes, ornate stucco walls, Murano chandeliers and antique gold fixtures. Its restaurant, Canova, has won multiple awards for its seasonal, traditional Italian cuisine.

Readers' Rating: 82.140

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Toys that purport to teach STEM skills are all the rage, but plopping a box in front of a kid is just as likely to teach them how to lose a bunch of toy pieces as it is to get them building anything.

If you really want to encourage a builder's mindset, start with books, where you control the message.

It may not guarantee that they get straight As in physics or finally design hoverboards, but it will ensure that when the subject arises they can say, "I read a book (or 9) about that once."

SEE ALSO: The four cultural shifts that led to the rise of the helicopter parent

DON'T FORGET: Follow Business Insider's Lifestyle page on Facebook!

"The Invention Of Hugo Cabret"

This moving, cinematic story of a thieving orphan who tends the clocks in a Paris train station and unlocks the mystery his deceased father leaves behind won the 2008 Caldecott Medal, but it sounds familiar to you because it inspired Martin Scorsese's Oscar-winning 2011 film, Hugo.

So you can introduce your kid to engineering and prestige filmmaking in one shot, without forcing them to sit through 3-plus hours of Jack Nicholson attempting a Boston accent.

"The Invention of Hugo Cabret" by Brian Selznick ($14)

Ages: 8-12

"Rosie Revere, Engineer"

The Godmother of maker women was World War 2's Rosie "We Can Do It!" The Riveter, whom the title character of this book is lucky enough to have as a great-great aunt.

Rosie (the younger) is too shy to talk about her passion for inventing, but is motivated by a timely visit from Rosie (the elder) to pursue her dreams, attempt to build a flying machine, and start wearing a polka-dotted scarf around her head.

"Rosie Revere, Engineer" by Andrea Beaty and David Roberts ($11)

Ages: 5-7

"Marvelous Mattie: How Margaret E. Knight Became An Inventor"

Check that — Rosie has some company in the lesser known Knight, aka "The Lady Edison," whose story reads like a real-life Rosie Revere. As a child she built her mother a foot warmer. At 12 she designed safer looms that saved textile workers' lives.

After that went uncredited, she continued inventing as an adult and fought to become the first woman ever granted a U.S. patent. The only thing she didn't do was get herself on an iconic World War 2 marketing campaign.

"Marvelous Mattie: How Margaret E. Knight Became An Inventor" by Emily Arnold McCully ($14)

Ages: 6-10

The 2016 Summer Olympics kick off in Rio de Janeiro, Brazil, in a little over a year, marking the first time the games will be hosted by a South American nation.

Reports regarding the country's preparation for the event, however, have not been great. In April 2014, IOC vice president John Coates called the preparation"the worst ever." This April, the AP reported that the Rodrigo de Freitas lagoon, one of two central waterways to be used for sailing and rowing events, was plagued by a fish-die off.

It was at least the second fish die-off in 2015. The first occurred in February at Guanabara Bay — where other water events are schedule to take place.

A local photographer named Alex Moutinho told the AP, "Every year there are these die-offs, sometimes bigger, sometimes smaller. It's one more Brazilian shame."

With just over a year until the opening ceremonies, held at the famous Maracana stadium in Rio on August 5, the IOC head Thomas Bach said Wednesday that cleaning up Guanabara Bay will be the biggest challenge Rio 2016 faces in the final year of preparation for the Olympics. As of right now, sewage, debris, and dangerous bacteria are all commonplace in the bay. These massive fish die-offs are common occurrences, too, and likely the result of such heavy pollution.

Some athletes are demanding that the windsurfing and sailing events be moved to cleaner bodies of water, but Rio officials have denied this request and said that trash-collecting boats will protect the athletes. IOC officials, meanwhile, have acknowledged that although Guanabara Bay will not be completely free of pollution, they will be improved and safe enough for competition. 

Thousands of twaite shad fish died in the Rodrigo de Freitas lagoon in Rio in April.

More fish in the Rodrigo de Freitas lagoon, where rowing events will take place.

Guanabara Bay will host sailing events at the 2016 Summer Olympics. A massive fish die-off occurred here in February 2015.

NOW WATCH: Scientists are astonished by these Goby fish that can climb 300-foot waterfalls

Having a long layover while waiting for your next flight at the airport is often an unpleasant experience, but some airports are adding a variety of entertainment features to make your wait as enjoyable as possible. 

These airports have everything from IMAX movie theaters to golf courses and rooftop pools. 

From an on-site brewery with live music at the Munich Airport to over 1,000 slot machines in Las Vegas' McCarran International Airport, here are 15 airports where you won't mind having a long layover.

SEE ALSO: The 10 best airports in the world

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Singapore’s Changi Airport has a two-story butterfly garden with a 27-foot waterfall, a cacti garden with around 40 species of cacti, and orchid and sunflower gardens. It also hosts a rooftop pool, several in-terminal hotels, one of the world’s tallest airport slides at 4 stories high, and a Fish Spa that offers treatments like hot stone massages, fish pedicures, and ear candling. There's a reason it's regularly ranked the No. 1 airport in the world.

Source: Fodor's Travel

See why Singapore's Airport was named the world's best — again »

The Amsterdam Schiphol Airport hosts a branch of the Riijkmuseum where you can discover Dutch music, literature, and art; a 6XD Theater, where you can sit on a five-minute film ride with special effects; and a Back to Life oxygen bar, where oxygen infused with lavender and eucalyptus helps you relax before your flight.

Source: Fodor's Travel,Forbes

Las Vegas' McCarran International Airport has around 1,300 slot machines located in terminals 1 and 2. At the Howard W. Cannon Aviation Museum (in terminal 1), you can see a collection of 30 display cases showcasing Southern Nevada’s aviation history, and take your kids to the aviation-themed play area.

Source: McCarran International Airport

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From lemons to sponges to last night's leftover beer, there are a lot of household basics laying around that could be repurposed and put to use in smart, cost-effective ways.

Before you head out to buy new cleaning, beauty, or gardening products, take a look at this list of products and ingredients that may do the trick. 

Here are 16 household items that could save you an errand run and some cash:

Mandi Woodruff contributed to an earlier version of this article.

SEE ALSO: 13 tips to save up to $1,000 in 30 days or less

Lemons: Freshen up your home.

Lemons are all the firepower you'll need in the face of life's stinkier problems.

Couponsherpa.com suggests tossing leftover lemon peels into the garbage disposal and letting it whirl to get rid of any unsavory smells. 

You can also rub down your cutting board with half a lemon to freshen it up. During cooler months, cozy up to the fireplace and toss a few peels on the flames to add a citrusy hint to the air in your home. 

Check out 66 more life-changing things you can do with a lemon.

Vinegar: Pamper your pooch.

Vinegar may be pretty assaulting on the olfactory senses, but it is probably one of the most diverse products you have in your household arsenal.

Vinegartips.com recommends using it to make your pup's coat really shine. Just mix a cup of the white distilled variety with one quart of water, then rub down their coat with your hands.

The versatile ingredient can also be used to maintain skin and nails, soothe bug bites, remove stains, and maintain a healthy and green garden, according to the site.

Honey: Fight germs.

Winnie may have been on to something.

Some varieties of honey can be used as a very effective antibacterial agent, according to US News & World Report.

The most potent type, Manuka honey, is found in New Zealand, US News reports, but there are honey-based wound creams and lotions you can purchase through Honeymark International.

The sweet treat can also be used as a shampoo booster, hair conditioner, pore cleanser, and scar fader, according to Women's Health Magazine.

If history is anything to go by, the successor to the iPhone 6 is due for release in September.

That's only a little over a month from now, so we've compiled a list of everything we know about the next iPhone.

Here's what (we think) we know so far.

SEE ALSO: The iPhone is unstoppable

It will probably look identical to the iPhone 6.

Leaked photos of the alleged "iPhone 6s'" shell were obtained by 9to5Mac. They show that the next iPhone is probably going to look the same as the iPhone 6. 

Every "S" model of Apple's iPhones have been physically identical to its non-S predecessors, so this leak is entirely likely.

There will be two different sizes again.

In apparent discussions with Apple's suppliers, the Wall Street Journal reported that the next iPhone will be available in the same 4.7-inch and 5.5-inch variations that are currently available. 

There might be a pink edition...

The same Wall Street Journal report claims that Apple's supposed suppliers said there would be a pink option for the iPhone's aluminum casing. (The model shown here is the pink iPhone 5C, which is made of plastic.)

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