Marina Bay Sands, Singapore

The infinity pool at Marina Bay Sands soars a hair-raising 650 feet in the air, overlooking the Singapore skyline. The expansive “SkyPark” deck and observation platform (large enough to fit three football fields) is perched 55 floors up on a platform that connects the hotel’s three skyscrapers. Guests who aren’t content to swim or lounge can paraglide off the side. marinabaysands.com.