Price: $20 million
Listing agents: Sylvia Fragos, Great Estate International Realty, 305-904-7847
This Moorish-style home features four bedroom suites, a chef's kitchen, an enclosed rooftop observatory and separate staff quarters. The one-acre property also has lush gardens, a salt-water pool, 100 feet of ocean frontage and a private dock. It's on Star Island Drive -- the only street on exclusive Star Island, an enclave of a few dozen homes about a mile off of mainland Miami in Biscayne Bay. Reachable by a single bridge, Star Island counts musician Gloria Estafan, basketball star Shaquille O'Neil and talk-show host Rosie O'Donnell as current or former residents. You can get more information about Villa Stella here.