This Gravity-defying swimming pool hangs over 24-story ledge with a transparent glass floor is located in a Shanghai Holiday Inn.

It’s design is what’s known as a cantilever pool, in which part of the pool extends beyond the ledges of the building. The cantilever engineering allows the pool to extend over the edge of the hotel’s wall while being anchored only at one end.  Here are a pictures from street level and from inside the hotel of the pool which measures 98 feet long, 20 feet wide and 5 feet deep

The extension gives swimmers the sense that they are traveling through the air, all while pedestrians can view them from below. If you happen to be in the area, rooms at the hotel start at $125 per night.