No, this isn’t Disney World, although, at first glance, it’s easy to mistake this Caribbean hideaway as a new installment at the Magic Kingdom. Located just offshore from Providenciales Island, Emerald Cay in Turks and Caicos is 2.5 acres of pure fantasy.

Once you pass over the 40-foot remote-controlled swing bridge onto this private island, a Turkish marble driveway leads you to the 30,000-square-foot, Mediterranean-style villa. From there, amenities read like a billionaire’s wish list: 45-foot great room ceiling, three-story library, 6,000-bottle wine cellar, separate villas for guests and staff, two boat slips, multiple pools, waterfalls, lagoons and, of course, a swim-up bar.

The Details: $48,500,000; Lyle Schmidek, Grace Bay Realty; 602-324-9400; info@gracebayrealty.com; gracebayrealty.com.