For decades, geologists have known that Vietnam is home to some of the world’s most spectacular caves, many of them largely unexplored. Now husband-and-wife cavers have documented perhaps the world’s largest: Hang Son Doong, big enough in places to accommodate a New York City block of skyscrapers.

The cave in the Annamite Mountains contains a river and jungle (its name translates to “mountain river cave”) and even its own thin clouds, and its end remains out of sight. It’s part of a network of about 150 caves in central Vietnam near the Laotian border.

Click image to see more photos of the giant cave

http://news.yahoo.com/s/yblog_thelookout/20110103/ts_yblog_thelookout/explorers-discover-spectacular-caves-in-vietnam

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