Crystal Cave is one not to miss, according to travelers, many of whom call it a surprise highlight of their visit. The subterranean marble cavern is filled with stalactites and stalagmites. It also ...

This turned out to be an INCREDIBLE adventure. It's rare to find such a variety of treasure in one location. This place was full of cool things to see and 30 million year old marine fossils.

Functional Crystals Lab, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China University of ...

The Xiaozhai Tiankeng stands as the textbook example of what happens when karst processes are given perfect working ...