Image via WikipediaIf you fancy a dip in this pool, you'll need a head for heights - it's 55 storeys up.
But swimming to the edge won't be quite as risky as it looks. While the water in the infinity pool seems to end in a sheer drop, it actually spills into a catchment area where it is pumped back into the main pool. At three times the length of an Olympic pool and 650ft up, it is the largest outdoor pool in the world at that height.
It features in the impressive, boat-shaped 'SkyPark' perched atop the three towers that make up the world's most expensive hotel, the £4billion Marina Bay Sands development in Singapore.
Don't look down: A guest swims in the infinity pool of the Skypark that tops the Marina Bay Sands hotel towers - 55 storeys over the city of Singapore yesterday
