Marina Bay Sands Skypark, Singapore

Over 650 feet above the streets, a sky park stretches between the towers of the Marina Bay Sands Hotel in Singapore, offering one of the world’s most spectacular infinity pools, which seems to pour over into the cityscape. The two-acre skylark also includes a garden, jogging paths, spas and ‘floating’ crystal pavilions. It’s cantilevered 230 feet at one end, twice the length of a Boeing 747 jumbo jet.