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With a net worth of $95.3 billion, Microsoft cofounder Bill Gates is the second-richest man in America, behind fellow Washington resident Jeff Bezos.

It shouldn’t be too surprising that one of the wealthiest people in the world also has an insanely extravagant home.

It took Gates seven years and $63 million to build his Medina, Washington estate, named “Xanadu 2.0” after the fictional home of Charles Foster Kane, the title character of “Citizen Kane.” Medina, a suburb of Seattle, is also home to Bezos, making it home to some of the wealthiest people on the planet.

At 66,000 square feet, the home is absolutely massive, and it’s loaded to the brim with high-tech details.

We’ve rounded up some of Xanadu 2.0’s most over-the-top features here.

It’s worth at least $127 million today.

According to the King County public assessor’s office, the property is worth $127.48 million as of this year. Gates purchased the lot for $2 million in 1988.

It has 7 bedrooms and a whopping 18.75 bathrooms, according to public records.

Half a million board-feet of lumber was needed to complete the project.

Reuters
The house was built with 500-year-old Douglas fir trees, and 300 construction workers labored on the home — 100 of whom were electricians.

A high-tech sensor system helps guests monitor a room’s climate and lighting.

Kevork Djansezian / Getty
When guests arrive, they’re given a pin that interacts with sensors located all over the house. Guests enter their temperature and lighting preferences so that the settings change as they move throughout the home. Speakers hidden behind wallpaper allow music to follow you from room to room.

The house uses its natural surroundings to reduce heat loss.

Wikimedia Commons
Xanadu 2.0 is an “earth-sheltered” house, meaning that it’s built into its surroundings to regulate temperature more efficiently.

You can change the artwork on the walls with just the touch of a button.

P. S. Burton / Wikimedia Commons
Situated around the house are $80,000 worth of computer screens. Anyone can make the screens display their favorite paintings or photographs, which are stored on devices worth $150,000.

The pool also has its own underwater music system.

jeffwilcox / Flickr
The 60-foot pool is in its own separate, 3,900-square-foot building — the large brown building in the photo above. People in the pool could swim underneath a glass wall to come up to a terrace area on the outside.

There’s also a locker room with four showers and two baths.

There’s a trampoline room with a 20-foot ceiling.

This is not Gates’ trampoline room. Taylor Weidman/Getty Images
No word on how big the trampoline is, but we can imagine it would be a fun alternative to your standard exercise routine.

The exercise facilities total 2,500 square feet and also include a sauna, steam room, and separate men’s and women’s locker rooms.

An enormous reception hall can accommodate up to 200 guests.

This is not Gates’ reception hall. Flickr/hernanpc
The 2,300-square-foot hall could seat up to 150 people for a dinner party, or 200 people standing up at a cocktail event. A 6-foot-wide limestone fireplace dominates one wall, while another wall has a 22-foot-wide video screen.

The house has 24 bathrooms, 10 of which are full baths.

Bill Gates
Those bathrooms would definitely be useful if Gates were throwing such a big party. Otherwise, it seems a little over the top.

There are six kitchens.

Getty Images/Paul Morigi
They’re at different parts of the house so staff can be ready for any event.

An enormous library houses a manuscript Gates paid more than $30 million for.

The Codex Leicester. Image Courtesy ©bgC3
The 2,100-square-foot library has a dome roof and two secret bookcases, including one that reveals a hidden bar. On the ceiling you’ll find a quote from “The Great Gatsby” that reads: “He had come a long way to this blue lawn, and his dream must have seemed so close that he could hardly fail to grasp it.”

The library is also home to the Codex Leicester, a 16th-century Leonardo da Vinci manuscript that Gates bought at auction for $30.8 million in 1994.

The home theater can accommodate 20 guests in plush seats.

This is not Gates’ home theater. zillow.com
It’s designed in an Art Deco style, with comfortable arm chairs, couches, and even a popcorn machine for snacking.

An existing home was removed by barge to make room for a separate activities building.

A sea barge with three homes is tugged out into the Strait of Georgia near Richmond, British Columbia, August 1, 2012. REUTERS/Ben Nelms
The 900-square-foot building sits next to Gates’ sport court, putting green, and boat docks.

The guest house is just as high-tech as the main house.

Amazon.com
According to US News, the 1,900-square-foot guest house was the first building to be completed on the property. The house — which has its own bedroom and bathroom — was meant to be a test of the technology that would eventually be used in the main house.

Gates wrote much of “The Road Ahead,” his 1995 nonfiction book on the future of tech, at this guest house.

Altogether, Gates’ garages can accommodate up to 23 cars.

Gates’ first big splurge after Microsoft hit it big was a Porsche 911 like thsi one. H&H Classics
There are several different garages at different points around the property. The most interesting one, however, is an underground cave made out of concrete and stainless steel. That garage alone can park 10 cars. Some of the concrete was purposely broken to give it a rough, “deconstructivist” look.

Gates himself is a noted car nut — he says his first big splurge after Microsoft made it big was a Porsche 911.

Gates has a favorite tree, and it’s monitored electronically 24 hours a day.

Reuters
Gates reportedly became fond of a 40-year-old maple tree that grew close to the home’s driveway. It’s monitored by computer, and if at any point it becomes too dry, water is automatically pumped into it.

An artificial stream is kept stocked with fish.

This is not Gates’ artificial stream. TOrange.us
The stream and wetland estuary were created to solve any problems with runoff that the property’s large walls might have created. The water is kept stocked with salmon and sea-run cutthroat trout.

The sand on Gates’ beach is imported from the Caribbean.

The airport of Castries, St. Lucia’s capital, is so close to the beach that you can check in, swim, and then board your plane. Garfors.com
The lakefront shore contains sand that’s delivered in large quantities by a barge from St. Lucia each year.

Someone once paid $35,000 just to tour it.

Reuters

Microsoft holds an auction each year, where employees donate products and services to be bid on. Proceeds go to the company’s charitable fund.

Gates has donated private tours of Xanadu 2.0 in the past. According to the Puget Sound Business Journal, a Microsoft employee once won the tour with a bid of $35,000.