4. Fairfield Pond The Hamptons – $220 Million
Built by investor and businessman Ira Rennert, this 63-acre Hamptons, New York compound deserves to be on this exclusive list. Worth $220 million it features 100,000 square feet of buildings, a basketball court, a bowling alley, squash courts and tennis courts. There is also no shortage of space for houseguests given that there are 29 bedrooms and 39 bathrooms.