Take a Tour Through the World's Biggest Cave Passage [Video]

Working as a National Geographic photographer is (thankfully) more than just panther attacks and paraglider crashes. Sometimes you get to explore the underground equivalent of "a previously undiscovered Mount Everest" like photographer Carsten Peter. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/VRAvFtloJbk/take-a-tour-through-the-worlds-biggest-cave

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