subterranean ravel and places,Guizhou province,china

Search Amazon.com for prehnite Underground Worlds: Guizhou ChinaLonggong(Dragon palace)
Looks like a crystal palace and has waterfalls

Zhijin cave is a cave known as the `museum of karst',it might be 1.2 million years old,is over  7 miles long and has rocks like prehnite,bloodstone and curlstone


Zhirendong cave
Here have been discovered modern human remains(part of a mandible and two molars) dating from possibly 100,000 years ago ,found under the oldest flowstone.
Also found were remains of orang-utans and giant tapirs.

subterranean travel and places,staffordshire,england,uk

Thor's cave  is located 250ft above  the Manifold valley and  has  views over the said valley.