Singapore SkyPark Pool
Not all scenic overlooks require that you walk up to the edge. In Singapore, there's one spot where you can swim up to the edge. Think of the SkyPark on the top of the Marina Bay Sands as having the ultimate infinity pool. It goes right up to the edge, giving swimmers a view of the ultra-modern city-state's skyline.
You won't have to fight for a space to enjoy the view. The "vanishing edge" stretches for just under 500 feet. Street level is 57 floors below the pool. For those not eager to get too close to the edge, the rooftop area also has a viewing deck, a restaurant, a nightclub and gardens.