China's southwestern karst landscape is pockmarked with dozens of enormous sinkholes that look like they were made with a cookie cutter — and scientists keep finding new ones. When you purchase ...

Despite being hundreds of meters deep, the Xiaozhai Tiankeng sinkhole was not discovered until 1994, when a group of British explorers with the Royal Geographic Society stumbled upon it. Since this ...

Deep in China's Fengjie County lies a natural wonder that has fascinated experts for decades. The Xiaozhai Tiankeng sinkhole is vast. Probably formed centuries ago by collapsing caves and underground ...

Xiaozhai Tiankeng is the largest sinkhole in the world, and no just by looking at number s it is very hard to imagine how big it is. About 1,285 plant and animal species live at the bottom of this ...