Marina Bay Sands pool, Singapore For sheer "wow" nothing can beat the infinity pool at the 4-billion dollar Marina Bay Sands resort in Singapore, which opened in 2010. At 55 storeys above ground, the pool stretches 150 metres, three times the length of an Olympic swimming pool. It is the largest outdoor pool in the world at that height.
Ubud Hanging Gardens pools, Bali The most striking feature of this hotel is its multi-levelled hanging infinity pools, with curves that mimic the shape of the hills nearby. In addition to the main pool, all rooms and suites have their own individual horizon-edge pool.