Costa Rica,

$5.9 million (£4.75 million)

Sotheby’s International (00 506 8888 0013) The sleek, clean lines of this property contrast beautifully with the tropical forest that surrounds it, or, rather, supports it—the house, with its window walls and double-volume spaces, appears to float above the canopy. There are four bedrooms, four bathrooms, 2.3 acres, a pool and a canti-levered sun deck.