Sold, the most expensive home in the U.S., $100 million

It's nice to know that in these hard economic times, the world's billionaires are doing alright. One billionaire in particular, Yuri Milner, recently decided to buy a new house: a sprawling $100 million California mansion - the most expensive one-family home ever sold in the U.S. The 25,500-square-foot home in Los Altos home is modeled like a French chateau on steroids. It has five bedrooms, nine bathrooms and sits on 11 acres of land. There is also a ballroom and indoor and outdoor pools.