World Wrestling Entertainment majority owner, chairman, and CEO Vince McMahon grew up in an 8-foot-wide trailer in North Carolina, where he did not meet his father, a wrestling promoter, until the age of 12.

From those humble origins, McMahon, who turned 69 earlier this week, rose to become the head of a billion-dollar company. In growing WWE from the regional organization it was when he took over to the global empire it is today, McMahon has relied on an incredible work ethic that is unmatched in the wrestling business.

For more than three decades, he has lived, breathed, and sometimes bled WWE, both in the boardroom and on television, where he plays a fictionalized version of himself.

He doesn't believe in sickness.

Employees feeling under the weather while working at WWE are unlikely to get much sympathy from the company's CEO.

Former WWE creative team members Vince Russo and David Lagana both write that McMahon has been known to tell glassy-eyed employees that "there is no such thing as sick."

"Vince is a workaholic, and if anything gets in the way of his work, it makes him angry," Lagana writes.

It was impossible to beat him into the office in the morning or outlast him at night.

Vince Russo, who worked for McMahon as the then-WWF's head writer during the company's late '90s boom period, recalls that McMahon basically lived at the company's Stamford, Connecticut, office.

If Russo got in at 7 a.m., McMahon's car would already be there, and if he stayed until 10 p.m., McMahon's car would still be there.

"In other words — the guy just never left the office!!!" Russo writes in a piece for What Culture.

He barely ever sleeps.

In a 2012 interview, McMahon tells Bloomberg Businessweek that he sleeps just four hours a night.

"I don't like to sleep," McMahon says. "I'm missing something when I'm sleeping."

When you're on a long-haul flight to Asia, you know how important it is to get some sleep.

You'll probably be all right if you're in first class. Flying economy? Good luck.

But what if you're a member of the flight crew? Turns out that on Boeing's 777 and 787 airliners there is a secret stairway that leads to a tiny set of windowless bedrooms for flight attendants and pilots. After all, they also need sleep on journeys than can take 18 hours or more.

Passengers aren't allowed up there, and few people know they even exist. Here is what those upstairs bedrooms look like, via YouTube videos from Chris McGinniss at Travelskills.com and Chris Jepson and the Flickr account of Martin Deutsch.

This is Boeing's official representation of the crew rest area on a Boeing 777.

This diagram shows how the crew bedrooms are located in a tiny slot above the main cabin.

It looks pretty nice in there, judging by Boeing's official imagery.

Labor Day is the last long weekend of the summer, and everyone's dying to get away for those three days.

Over 34.7 million Americans are planning to travel for Labor Day this year — the highest number since the recession, according to AAA.

We found the best all-American getaways to celebrate Labor Day this weekend.

From the Gulf Coast to the San Juan Islands, these destinations are all near major U.S. cities, making it easy to jaunt over for a long weekend.

Kennebunkport, Maine

Under two hours from Boston and just across the New Hampshire-Maine border is one of the most picturesque fishing towns in all of New England.

Kennebunkport is home to numerous unique gift shops and restaurants, and you just might catch sight of President George H.W. Bush — his summer home is minutes from town.

Go on a whale-watching expedition and eat the freshest local seafood at Noonan's Lobster Hut in neighboring Cape Porpoise.

One of the top places to stay is The White Barn Inn, a charming inn with a European feel; rooms here start from about $800 per night over Labor Day weekend.

Hilton Head, S.C.

Just 45 minutes from Savannah and about four hours from Atlanta, Hilton Head is ideally located for southerners looking for a beach getaway on the Atlantic coast.

The laid-back island has top-rated restaurants, world-class golf resorts, packed beaches which are great for either laying out or riding bikes on the sand, and the charm and hospitality you'd expect from a southern destination.

There are tons of hotels, inns, and apartments for rent, but one of the most popular places to stay is the Inn at Harbour Town - Sea Pines Resort, where rooms start at about $320 per night over Labor Day weekend.

Carmel, Calif.

About 120 miles south of San Francisco, Carmel-by-the-Sea is a picturesque dot on the Monterey Peninsula with a population of just 3,722.

It's dog-friendly and known for its kitschy local arts and culture scene. It also has great fishing. Think twice about wearing high heels, though; Carmel law requires a high heel permit.

La Playa Carmel is a grand, old hotel that's allegedly haunted by the ghost of a woman who drowned herself in Carmel Bay — but that doesn't seem to stop vacationers from staying there. Rooms at La Playa start from about $615 per night over Labor Day weekend.

When he was 21, Stephen Hawking learned he had motor neurone disease.

Doctors told him he had a few years to live.

He's now 72 and one of the foremost physicists alive — a professor at the University of Cambridge, an investigator of black holes, and the author of the bestselling book "A Brief History of Time." 

Here are a dozen quotes showing Hawking's approach to science and to life.

On disability

"My advice to other disabled people would be, concentrate on things your disability doesn’t prevent you doing well, and don’t regret the things it interferes with. Don’t be disabled in spirit, as well as physically."

[The New York Times, 2011]

On priorities

"My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all."

["Stephen Hawking's Universe," 1985]

On free will

"I have noticed that even people who claim everything is predetermined and that we can do nothing to change it, look before they cross the road."

["Black Holes and Baby Universes and Other Essays," 1994] 

The current Ebola outbreak in West Africa is the most severe outbreak of Ebola ever, affecting 3,069 people and killing 1,552, the vast majority of whom are in the small African country of Liberia.

Extreme poverty, poor sanitation, a lack of adequate medical equipment, and a distrustful public have made containing the disease difficult for the Liberian government.

The scene has been made more horrific by Liberia’s decision to create quarantines in some outlying districts of Monrovia, which has incited protests among Liberians. 

Getty photographer John Moore has been in Liberia for the last two weeks, documenting the government’s efforts to stop the spread of the disease.  

The current Ebola outbreak began in Guinea last December. It wasn’t detected, however, until March. By that time, it had already spread to Liberia, one of the poorest countries in the world.

By June, Ebola cases were being reported in Monrovia, the country’s capital. Doctors Without Borders described the situation as “totally out of control.” West Point, a township of 75,000 people in Monrovia, has been one of the hardest hit.

Source: Business Insider

The widespread poverty in Liberia has made the spread of the disease far worse. With 84% of Liberians under the poverty line, most live in poor living conditions, lack consistent fresh water, and have poor sanitation. When there’s barely enough water to drink, most people don’t think about washing their hands.

Source: UNICEF

An apartment in New York's Plaza Hotel has hit the market for an insane asking price.

Florida-based philanthropist and retired insurance tycoon Barry Kaye and his wife Carol Kaye have listed their third-floor Plaza apartment for a whopping $49.5 million, according to the New York Daily News.

The 3,412-square-foot pad has three bedrooms, two master bathrooms, access to the Plaza's spa and gym, and views of Central Park in every room.

The apartment was built from two former state rooms, which the Kayes bought in 2008 for $13.6 million.

The Plaza Hotel is one of New York's most iconic buildings and sits right at the foot of Central Park.

It's also the place that a lucky few call home. Barry and Carol Kaye bought two former staterooms on the third floor for $13.6 million in 2008. They are now selling the converted apartment for $49.5 million.

The massive living room includes a 13-foot-high ceiling with a recessed coffer.

Just because an app is available on the App Store doesn't mean it will stick around.

Apple maintains a tight ship and has strict policies on what apps are allowed to do, but sometimes a few apps slip through the cracks.

From apps that can play old Nintendo games, to the notorious "Flappy Bird," we've collected the most interesting apps that are no longer available — unless you were one of the lucky few who downloaded them before they got yanked.

In the final 24 hours "Flappy Bird" was available, over 10 million people downloaded the addicting game.

Creator Dong Nguyen was bothered by the onslaught of media attention and messages from those addicted to the game. Nguyen later told Rolling Stone he pulled the game because "I'm [the] master of my own fate."

"Nescaline" was a Nintendo emulator that lasted only a couple of hours.

"Nescaline" allowed its users to play full Nintendo games on their iPhone, and even had multitouch support — a novelty for emulators at the time.

"Weed Firm" reached the No. 1 overall spot in the App Store's free section before Apple pulled it.

The game's description asked you to "Follow the story of an expelled botany sophomore Ted Growing as he inherits a growing operation and expands it."

Celine Dion has slashed the price of her gorgeous property on Florida's Jupiter Island to $62.5 million after it languished on the market for over a year.

According to The New York Daily News, Dion's compound was discounted by $10 million after originally being listed for $72.5 million back in August 2013.

The home, which is jointly listed by Sotheby's International Realty agents Joseph Montanaro and Cristina Condon, was custom-built and designed in 2010 by Celine Dion herself.

She and her manager husband Reneé Angélil bought the lot of land in 2005 for $12.5 million and the adjacent mansion in 2008 for $7 million, The Wall Street Journal reported. They then razed to build the current spread.

The five-and-a-half-acre property has views of the Atlantic Ocean, a four-bedroom guest house, a simulated golf range, pool house, and three separate pools.

The main residence alone measures close to 10,000 square feet, with five bedrooms and a custom-designed, walk-in closet with automated rack for clothing and automated carousel for shoes.

In 2012, Dion listed her home on a private island in Quebec for $29.3 million; it's still on the market.

Welcome to Celine Dion's 5.5-acre compound on Jupiter Island in Florida.

Source: Sotheby's International Realty

The singer is selling the property for $62.5 million.

Source: Sotheby's International Realty

She and her husband custom-designed the property themselves after buying two lots and razing one of the existing homes.

Source: Sotheby's International Realty

There are plenty of Silicon Valley executives who live fabulous and lavishlifestyles, but not all of tech's millionaires and billionaires care to flaunt their wealth.

Some tech leaders prefer to use their wealth as a cushion to life comfortably, but not excessively.

We rounded up some of the wealthiest names in technology to show you that not all of Silicon Valley's millionaires and billionaires blow their riches on yachts, mansions, and private jets.

Facebook founder Mark Zuckerberg eats McDonald's and wears the same shirt and hoodie every day.

Net worth: $33.3 billion

The brains behind Facebook, Mark Zuckerberg is just one of three people in the world who has more billions in his possession than years lived. But despite his wealth, the 28-year-old still leads a quiet life.

He owns a $7 million house in Palo Alto, but The Los Angeles Times says the home is "still well below his means." He used to drive a black Acura TSX, but now he's behind the wheel of a Volkswagen GTI — both cars, however, cost about $30,000. In addition, Zuckerberg wed his longtime girlfriend Priscilla Chan in his backyard, and the pair was seen eating at a McDonald's on their Italian honeymoon.

He also famously wears the same gray t-shirt and hoodie to work every day.

Microsoft's new CEO Satya Nadella takes online courses in the morning.

Net worth: $45 million

His colleagues have called him “thoughtful,” “articulate” and “a great listener.” But Nadella, who moved to the U.S. to earn his master’s degree in computer science from the University of Wisconsin - Milwaukee, is not so easily seduced by his new role as Microsoft’s chief executive.

Nadella says he likes to read poetry from American and Indian poets, and he still signs up for online courses to expand his horizons, especially early in the morning.

“I’m a learner,” Nadella says. “I think the thing that I realized is, what excites me is that I'm learning something. I can learn something about some area. I can learn something from people. I can learn something from doing things differently. And I admire that in other people, too. I fundamentally believe that if you are not learning new things … you stop doing great and useful things. So family, curiosity and hunger for knowledge all define me.”   

Google cofounder Sergey Brin often shops at Costco.

Net worth: $30.9 billion

Yes, Brin does owns a few private planes, but Brin has publicly confessed to his distaste for spending.

"From my parents, I certainly learned to be frugal and to be happy without very many things," he said in a 2007 interview. "It’s interesting — I still find myself not wanting to leave anything on the plate uneaten. I still look at prices. I try to force myself to do this less, not to be so frugal. But I was raised being happy with not so much."

He's also reportedly a frequent shopper at Costco, but he's certainly one of Silicon Valley's most generous philanthropists — he and his now-separated wife Anne Wojcicki donated $219 million to charities in 2013.

A career doesn't move linearly, LinkedIn founder Reid Hoffman famously advised— it can ratchet up suddenly with one critical insight, meeting, or opportunity. 

You call it a big break. 

Every success story has one.

Even luminaries like Sheryl Sandberg, Steve Jobs, and Howard Schultz had a moment where the path of their future clicked into focus. 

Here are the big breaks that helped these execs build 10-digit fortunes.

Richard Branson discovered a singer who became a huge success.

When Richard Branson was 16, he started a magazine called Student. But his big break came six years later when he opened a recording studio and brought in a singer named Mike Oldfield. 

Oldfield released "Tubular Bells," a mega-single that would stay on the U.K. charts for 247 weeks. 

"On the back of that, we built a record company,"he told us, "and one thing led on to another from there."

Henry Ford impressed the mayor of Detroit.

In 1898, Henry Ford won the loyalty of Detroit mayor William C. Maybury after he built a carburetor, for which Maybury awarded him a patent.

Maybury would prove instrumental in helping Ford become an automobile maker. 

"Maybury's support, combined with Ford's bold ideas and charisma, helped assemble a group of investors who contributed some $150,000 to establish the Detroit Automobile Company in early August 1899,"says History.com. 

That allowed Ford to quit his day job at the Edison Illuminating Company — and found the companies that would make the first mass production cars. 

Bill Gates landed an IBM contract.

In 1980, Bill Gates had dropped out of Harvard and was leading a tiny company called Microsoft that was trying to worm its way into the nascent personal computer industry. 

He — and the company — soon got a giant break, in the form of IBM. 

Big Blue wanted to bring a cheap personal computer to market fast. It contracted Microsoft to provide the operating system. At the time, it didn't have one to sell, but soon cobbled one together. 

I am not very brave. When it comes to daredevil activities, the farthest I'll go is zip-lining and the occasional roller coaster. I don't even like heights.

But I do like adventure! And, as we have reported, Google cofounder Sergey Brin likes to push his body to the limits. He counts the flying trapeze as one if his favorite hobbies, having taken advanced classes in his college days and bringing groups of Google employees to try it as a team.

How would it feel to soar through the air? What would it feel like to push myself to do something I would normally never try? 

I spent an afternoon at the Trapeze School New York, and it was just as scary — and even more exhilarating — than I ever imagined.  

Produced by Sam Rega.

SEE ALSO: SERGEY BRIN: Why The Google Cofounder Likes To Push His Body To The Limits

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The possibilities for 3D printing are endless — from instruments and toys to robots and mechanical parts, there's almost no limit to what a 3D printer can create. 

And now, designers and fashion enthusiasts are jumping on the bandwagon. While fashion designers have been using 3D-printed materials since 2010, their range has been limited until recently. 

"3D printed pieces are restricted to the materials that a machine can print with, and with this in mind, designers are often visually restricted in terms of what can be made," said Faith Robinson, content curator for global 3D technology showcase 3D Printshow. "With the recent introduction of multi-material, multi-color printing (at a more accessible price point), trends within 3D-printed fashion are moving away from the rigid, white 3D-printed nylon structures and towards pieces that look more 'real.'

Some designers, like Australia-based XYZ Workshop, are even making their designs available for download, which means anyone with a 3D printer can customize and create their own clothing. With 3D printers becoming more prevalent and affordable, it's truly the next frontier in fashion.

"Accompanied by 3D scanning technology, 3D printing can allow for the most incredible levels of personalization in fashion," Robinson said. "It's a new understanding of accessible haute couture."

Dutch designer Iris Van Herpen was one of the first to use 3D-printing techniques in fashion, starting in 2010 with her "Crystallization Collection." In January 2013, she debuted this intricate, lace-like dress that was created with a laser printing technique by Belgian company Materialise.

Source: Materialise

Van Herpen and Materialise collaborated again in March 2014, creating this 3D-printed dress that was coated in silicon for a glossy sheen.

Source: Materialise

In 2013, 3D-printing company Shapeways and architect Francis Bitonti debuted this amazing gown, modeled by burlesque star Dita Von Teese. The gown is made up of 17 pieces of flexible mesh with nearly 3,000 articulated joints and decorated with more than 12,000 Swarovski crystals.

Source: Shapeways, Francis Bitonti

After 12 years photographing models, musicians, and celebrities, Brad Wilson decided that he wanted to photograph something a little more unpredictable: exotic animals.

Wilson began traveling to zoos, animal sanctuaries, and studios to photograph everything from a lion to a chimpanzee. The photo shoots were far from the orderly scenes Wilson experienced while shooting magazine stories and advertisements. Instead, he says, they became a kind of “organized chaos.”

"You can’t direct animals like you can people. When you are shooting animals, you have to wait for them to do whatever it is they are going to do. You have to be patient and pick your moments,” says Wilson.  “It’s completely changed the way I looked at photography.”

Wilson shared some photos from the project with us here, but you can see more in his book, Wild Life, available here. Prints from the series are available at the Doinel Gallery.

All of the animals that Wilson shot were "trained" animals. Trained does not mean they will do what you want them to, it only means that they are trained not to attack humans.Animals were coaxed into participating in the shoot by providing them with treats. The hardest animals to keep interested, says Wilson, were the big cats. For the most part, the big cats were completely disinterested in Wilson and spent the time lying around looking away from the camera. It took a lot of patience to get this shot.In Wilson's studios, he usually surrounds the animals with various lights and flashes. In order to acclimate the animals, the team fires off flashes before the animals get on set so they aren't startled during the shoot.Some animals seemed to be completely unaware of the flashing lights, while others were clearly annoyed with them.Many of the animals that didn't like the flash figured out that if they looked directly at Wilson, the lights went off. As a result, they avoided looking him in the eye.Wilson says that chimpanzees and other great apes were by far the most engaging and interested in the photoshoot. He says that they kept trying to figure out what he was doing.The animal handlers were well-trained in identifying an animal's mood. If an animal seemed irritated or annoyed, the team stopped the shoot and let the animal take a break.

During one of the shoots with a tiger, Wilson and his team took a break after the tiger got agitated. When Wilson came back into the studio, the tiger was lying in the middle of the floor directly in front of him. With the animal handlers on the other side of the room, Wilson says that it was the first time in his life that he felt like "prey."

The animals came from zoos, animal sanctuaries, and commercial trainers who train animals for appearing in movies, TV, and commercials. Wilson says that he knew that in order to make this series he had to move quickly.

These days there are less and less trained animals, due to changing attitudes on captivity,  spearheaded by conservation and animal rights' group. There is also much less demand for the animals in Hollywood as most have replaced live animals with CGI.

Here's a short behind-the-scenes video on how Wilson shot the animals:

SEE ALSO: These Photos From Ebola's Ground Zero In Liberia Are Horrifying

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A family from the midwest dropped an eye-popping $300,000 to rent a mansion in Bridgehampton for a single week this summer, The New York Post reports.

That's a new Hamptons rental record, according to the post.

The home, dubbed the "Sandcastle" in Bridgehampton, has made headlines before. Jay-Z and Beyoncé reportedly spent $400,000 to rent it for a month in August 2012.

The Sandcastle was built by well-known Hamptons homebuilder Joe Farrell, and has a movie theater, bowling alley, walk-in refrigerator, wine room, climbing wall, basketball court, private gym, and spa.

Still, $300,000 is a ton of money for a week's vacation. Corcoran has the rental listing.

Callie Bost contributed to this story.

The Sandcastle sits on 11.5-acres on swanky Halsey Lane in Bridgehampton.

It has about 31,000 square feet of living space.

Here's the formal living room — complete with an intricate ceiling design and fluffy pillows.

The natural world is full of beautiful moments and interactions, but we don't always have the full context for what we see.

While many photographers capture beautiful images of animals out in the wild, few know exactly what's happening in the scene as well as a researcher does — unless that photographer happens to also be a scientist.

The BMC Ecology Image Competition is a contest designed to show both the beauty of what's happening in nature as well as highlight the researchers that help us understand it.

The journal just announced their 2014 winners and 22 additional "commended" images.

First, the commended photos: These Eastern Swallowtails frequently gather along riversides in the Eastern U.S. to feed on mineral deposits, according to photographer J.P. Lawrence.

Justin Havird photographed researchers Stephanie Irvin and Kiley Seitz gathering samples at this landlocked pond. It's named Skippy’s Pond and is a unique coastal habitat found at the ‘Ahihi-Kina’u Natural Area Reserve on South Maui in Hawaii.

In the Ethiopian Highlands, these gelada monkeys scurry to safety as the light changes and predators come out, according to photographer Ryan J. Burke.

Nathan Fielder, the 31-year-old Canadian comedian behind stunts like the "Dumb Starbucks" prank, just wrapped up Season 2 of his Comedy Central show, "Nathan For You."

In the show, a deadpan Fielder offers outrageous advice to business owners, trying to help them increase revenue, but through the most extreme means. 

In the show's intro, Fielder explains: "I graduated from one of Canada's top business schools with really good grades. Now, I'm using my knowledge to help struggling small-business owners make it in this competitive world." 

We broke down one segment from last week's Season 2 finale to show just how far Fielder's comedic business and marketing strategies can go in the real world.

Nathan Fielder is a 31-year-old comedian from Canada whose Comedy Central show "Nathan For You" offers outlandish advice to struggling small-business owners.

In the Season 2 finale, we meet Mark Rappaport, owner of Marky Sparky Toys.

In a voice-over, Nathan says: "Of all the products Mark has invented ... "

Wired magazine cofounder, entrepreneur, and prolific writer Kevin Kelly has a two-story personal library in his home and says that he's read thousands of books.

In an episode of writer and speaker Tim Ferriss' podcast, he talks about the three that he recommends the most.

We've taken these selections from the third and final part of the full interview. All three parts are available on iTunes.

Scroll down for Kelly's choices, and check out his writing at his website.

"The Adventures of Johnny Bunko: The Last Career Guide You'll Ever Need"

Kelly says he recommends this graphic novel from author Daniel Pink and illustrator Rob Ten Pas to young people just beginning their careers.

"It's not about how to become successful — it's about how to become indispensable," he tells Ferriss.

Its Japanese-style manga format makes the valuable career advice fun and easy to absorb, even if you've been a professional for awhile and just need some motivation.

Ferriss says he's got a copy of it on his bookshelf at home.

Buy it here >>

"So Good They Can't Ignore You: Why Skills Trump Passion in the Quest for Work You Love"

Kelly recommends this book from author and speaker Cal Newport to those who are looking to find more meaning in their professional lives.

Kelly says that he used to believe the "New Age California dogma" that if you follow your passion, the money will follow, but changed his mind after reading Newport's argument.

Newport instead says that, for most people at least, mastery of a certain skill can lead to finding one's passion, since the mastery of this skill can open new doors and allow you to progress in your career.

Buy it here >>

"Shantaram"

This is a work of fiction from Australian writer — and reformed criminal — Gregory David Roberts, who based it on his experience in the slums of India.

The book has been publicly praised by international chess master Joshua Waitzkin and actor Johnny Depp for its immersive story about finding oneself.

"It runs on and on, but it'll be one of those books you'll wish will never end," Kelly says.

Buy it here >>

A horrifying YouTube video showing a “luxury” New York City two-bedroom apartment is making the rounds today. The catch? It’s filled with 11 bunk beds for 22 roommates.

The video, which was first spotted by Brokelyn, was uploaded back in January, so unfortunately, this stunning real estate gem is probably already filled — or shut down. We're skeptical that it's even real, given the complete absurdity of the place, which looks like a camp bunk for recent college grads.

In the video, an anonymous landlord/broker shows off a tiny space he means to fill with 22 people. “People are serious here (students & young professionals),” the YouTube description says, “this is not a place to party.”

Things start to get weird at the 30-second mark when our tour guide says that this “huge” closet is going to be converted into the manager’s room. Fancy!The living room is filled with three bunk beds that are “mixed,” meaning that both guys and girls will be sleeping here.This tiny terrace can be used as an outdoor storage space, or where some of your 21 other roommates will smoke, the broker says, adding that perhaps he'll “put a grill out there and you can enjoy yourself."Apart from the living room bunk beds, there is an all-men’s bedroom (with three bunk beds) and a women’s bedroom (with five bunk beds, pictured below) with “plenty of closet space.” The women’s room even has a “private bathroom” for the 10 women who will be sleeping there.No price is given for this Manhattan real estate steal, but the apartment is supposedly on 27th Street and 3rd Avenue, and does not allow drugs or alcohol. According to the listing, people who stay here do so for two to six months (!!) with a minimum stay of 30 days.

Gothamist points out that this is definitely not legal. According to NYS housing law, “The maximum number of persons who may occupy any such apartment shall be determined by dividing the total liveable floor area of the apartment by 80 square feet.” Basically, there's no way each of the 22 unfortunate people living here have 80 square feet of space to themselves.

We’re not even sure this video is real, but given how awful New York City real estate has become, it just might be. Watch the full video below.

SEE ALSO: These Are The Worst Rooms For Rent In New York City

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Baseball legend Randy Johnson has the pitch-perfect home. The retired player, nicknamed the Big Unit, has listed his 25,000-square-foot estate in Paradise Valley, Arizona, for $25 million, according to Zillow.

The Mediterranean home was built in 2006 and sits at the base of Mummy Mountain. This custom-built seven-bedroom mansion is situated on five mountainside acres and includes amenities like a commercial-grade fitness facility, a pet suite, and a recording studio with a stage.

The home is being sold by The Joffe Group in Arizona.

Welcome to the home of Randy Johnson, a pitching legend in Major League Baseball.

When you step inside the house, you immediately notice the Mediterranean theme.

The main level includes a formal living room with massive Canterra stone fireplace and 24-foot ceilings.

Computers, smartphones, and tablets are expensive enough as it is. But when you outfit them with custom designer fabrics and jewels, they can cost you a mind-blowing sum of money.

While some gadgets can run you thousands of dollars because of their luxurious build materials, others are extremely expensive because of the technology that's inside them and what they can do. 

From gold-crafted iPhones to giant tablets with stunning displays, here are some of the most ridiculously expensive gadgets. 

AeroSystem One iPhone Dock/Speaker (about $1,115)

Most people probably wouldn't pay more than a few hundred dollars for a smartphone, let alone an accessory for your smartphone. But Jarre claims its sleek and tall iPhone companion is worth it. The sound system is said to be the result of years of research by French composer Jean Michael Jarre and his team. 

Optimus Maxiumus Keyboard ($1,500)

The Optimus Maximus keyboard sold for $1,500 when it launched six years ago. That's because the device's keys are fully programmable — meaning you can assign a different function to each key. Each button on the keyboard is a miniature display that tells you what its function is at a given time. Engadget has a brief review that explains how it works. 

Panasonic 4K Toughpad Tablet ($6,000)

Panasonic's 4K Windows 8 tablet sells for $6,000, but you don't have to worry about it breaking under stress. Since it's a Toughpad, Panasonic's rugged line of laptops and tablets, it can withstand being dropped from 2.5 feet. Rugged devices are usually much more expensive than regular computers since they're equipped to meet certain standards. But the 4k Toughpad's super-sharp 3,840x2,560-pixel-resolution display also accounts for its high price tag.