This 11-acre estate is located on Paloma Road in Los Altos Hills, California. It was recently purchased by billionaire Russian investor Yuri Milner, who has invested in companies like Facebook, Groupon, and Zynga. The house was completed in 2009 and is estimated to be worth around 100 million dollars. With over 30,000 square feet, this limestone mansion has many features and amenities. These include a ballroom, theater, indoor and outdoor pools, tennis court, 5 bedrooms, 9 bathrooms, and more. Click the link below to see more pictures.