Hang Son Doong: The Largest Cave on Earth

At over 5 km long, with sections reaching up to 200 m tall and 150 m wide, Hang Son Doong is large enough to house an entire New York City block, complete with 40 story skyscrapers.

With a total measured volume of 38.5 million cubic metres, this comfortably surpasses Deer Cave in Malaysia, which was considered to be the previous record holder. Stalagmites up to 80 m high have also been surveyed, the tallest ever encountered. Fewer people have seen the inside of Hang Son Doong than have stood on the summit of Mount Everest.


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