8. (TIE) Like something straight out of "The Great Gatsby," this magnificent estate in Great Neck, Long Island boasts 13 bedrooms, 35 bathrooms, indoor and outdoor pools, health complexes, game rooms, a bowling alley, and a casino.
Price: $100 million
Private gardens lead to a pier for a private yacht, and the iconic New York City skyline is visible from the extensive waterfront. The estate was previously owned by Tamir Sapir, a Russian émigré who made his fortune in New York real estate. He died in 2014.