User:David Rajzman/Tiankeng
Tiankeng[edit]
A Tiankeng is a special kind of sinkhole found in Southern China.
References[edit]
http://www.chinaculture.org/gb/en_curiosity/2004-08/10/content_58840.htm
http://dsc.discovery.com/news/2006/10/18/sinkhole_pla.html?category=earth&guid=20061018103000