Who: Steven A. Cohen
Location: Crown Lane, Greenwich, CT
2005 Value: $19.8 million
Square Feet: 31,642

Steven Cohen is a high profile hedge fund manager who runs SAC Capital Partners. His fortune is estimated by Forbes to be $6.8 billion. This mega-mansion sits on 14 acres and has 9 bedrooms and 16 bathrooms. There is also an indoor swimming pool, a putting green, ice skating rink with its own zamboni, a home theater and, get this, 12 refrigerators.