So why is Xiaozhai Tiankeng worth visiting? The beauty of the South China Karst landscape is something ... somewhat uneven ...

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 ...

Take one look at the giant sinkholes that pockmark China's ... in particular Xiaozhai Tiankeng, located in Fengjie County in southern-central China, which is the deepest sinkhole on Earth.