In the limestone heartlands of southern China, massive sinkholes known astiankengs are revealing untouched ecosystems and ...

China’s giant sinkholes, or tiankengs, may hide ancient trees and unknown life. These untouched ecosystems are nature’s ...

An enormous sinkhole swallowed a bus and pedestrians in China, sparking an explosion, killing six people and leaving 10 more missing, state media said Tuesday. Footage showed people at a bus stop ...

A motorcyclist who fell into a cavernous sinkhole that opened on a Seoul street was found dead after an overnight search, officials in South Korea’s capital said Tuesday. The roughly 20-meter ...