2. Emerald Cay, Turks and Caicos Islands

Emerald Cay is a 2.32 acre private island located in the Turks and Caicos chain of islands. Emerald Cay features a remote-controlled bridge that leads to an elaborate castle, surrounded by a clear turquoise moat. It is said that Emerald Cay is one of the most luxurious private islands ever built. Among the many luxuries inside the 30,000 square foot castle “home” is a three-story library and a 6,000 bottle wine cellar. There are also two adjoining swimming pools with a waterfall. It can be purchased for $48,500,000.