Check Out The 'World's Biggest Cave' On National Geographic Channel Dec. 20

In 2009, a team of British cavers investigated a recently uncovered cave in a remote Vietnamese jungle. The Son Doong cave is enormous; can it be larger than the current world-record holder?

Source: http://www.starpulse.com/news/index.php/2010/12/18/check_out_the_worlds_biggest_cave_on_n

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