At 66,000 square feet, the home is absolutely massive, and it's loaded to the brim with high-tech details. 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. The house was built with 500-year-old Douglas fir trees, and 300 construction workers labored on the home — 100 of whom were electricians.

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.

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 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.

Bill Gates

Famous owners