55 storeys up, this infinity pool could glide you straight over the edge of Singapore, if not the world. It's part of the $6 billion Marina Bay Sands Skypark hotel, which just opened this week.
Ok, so if you were really to propel yourself over the edge, you'd fall into a catchment-area which sends the excess water straight back into the pool. But where's the fun in that? The pool itself is three times the length of an Olympic-sized pool, and is the largest pool in the world at that height reportedly.