Find out interesting facts about Bill Gates’ $124 million mansion. People can’t help but notice the very fancy swimming pool with an underwater music system.

It took Bill Gates seven years and $63 million to build the “Xanadu 2.0” house in Medina, Washington. It is named after the home of “Citizen Kane” protagonist Charles Foster Kane. Rich people from around the world live in Medina, a suburb of Seattle where Bezos lives.

Sixty thousand square feet of high-tech features fill the whole house to the brim.

The 60-foot pool is in the separate building with the big brown roof that is 3,900 square feet and shown above. People who are swimming in the pool can go under a glass wall and through it to get to a deck outside. There is also a sound system underwater that lets you swim and listen to your favorite music.