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This is Son Doong cave, the world’s biggest cave [Amazing Photo of the Day]
![This is Son Doong cave, the world’s biggest cave [Amazing Photo of the Day]](http://cdn.dottech.org/media/2013/01/sun_doong_cave_18-290x160.jpg)
Son Doong cave is located in Vietnam close to the border of Laos. Found by a Vietnamese man named H?-Khanh in 1991 and made public by the British in 2009, Son Doong is the world’s largest cave. (Wikipedia actually describes it as “currently the biggest cave in world”, leaving room [...]
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