‘A Lost World Below the Surface’: Russian Explorers Film in World’s Biggest Cave with Drone

‘A Lost World Below the Surface’: Russian Explorers Film in World’s Biggest Cave with Drone

A group of Russian travelers explored one of the most spectacular yet least visited natural landmarks in the world - the Son Doong Cave located in the jungles of inland Vietnam.

The world’s biggest known cave, formed as a result of a cave in caused by a mountain river at least two million years ago, was stumbled upon by a local logger in 1991, who then lost its location before finding it again in 2009. At at its widest, it measures 150 by 200 meters, stretches for over 5 kilometers, and has a volume of 38,5 million cubic meters, about twice the size of the next largest underground hollow.

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Philippines President Rodrigo Duterte Recalls Stabbing A Man To Death When He Was 16

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