This mega waterfront mansion, located on Bay Lane in Key Biscayne, FL, is owned by Edgardo and Ana Cristina Defortuna. Edgardo is a prominent real estate developer (has built hundreds of condos in Miami) and is the founder of Fortune International Realty. The couple purchased the property in 2002 for $5.4 million. At the time, former president Richard Nixon’s compound, dubbed the “Winter White House”, occupied the land. They initially wanted to expand the property but ultimately  tore it down. Then in 2005 they purchased an adjoining property for $8 million to make one big property. They built this huge 22,000 square foot mansion in its place. All in all they spent around $20 million to build their dream home. The home features 3 gated entrances, a courtyard 6 bedrooms, rotunda foyer with 26 foot ceilings and Y-shaped marble staircase, formal reception rooms, a “quincho” (Argentine term for a covered barbecue area), gym, spa, playroom, beauty salon, infinity swimming pool and more.

*Thanks to HOTR reader Leland for the tip!