Did you know: The largest and deepest natural sinkhole in the world is Xiaozhai Tiankeng

The largest and deepest natural sinkhole in the world is Xiaozhai Tiankeng, also known as the Heavenly Pit. It is located in Fengjie County, Chongqing Municipality, China. The sinkhole reaches a depth of 662 meters (2,172 feet) and has a diameter of approximately 537 meters (1,762 feet).

Xiaozhai Tiankeng is a double-nested sinkhole with two craters connected by a sloping edge. It is a natural formation created by water erosion over a limestone cave system, with an underground river flowing beneath it. The sinkhole was first discovered by specialists in 1994