A Cavern Measureless to Man

See the people?                                                                                                           screen shot

At 1.27 square feet, China's Miao Room, part of its Gebihe cave system, was recently named the world's largest cave chamber by volume. It can be reached only via an underground stream. Last year, a British-led team laser-scanned parts of the cave, and now we can follow them on their expedition. Underground lakes, stalagmites, stalactites, and unbelievably large boulders ~ all part of this fascinating tour (interactive): http://www.nationalgeographic.com/china-caves/supercaves/