Accidentally discovered a whole world

This cave and a lost world in it found in 1991, one Vietnamese farmer. Cave is recognized as the largest in the world, why, with its height of 40-storey skyscraper. It has its own flora and fauna, its river, its jungles.

Is this natural wonder of the Vietnam national park Phon Nha-Ke Bang, 200 miles south of Hanoi. The cave is named Son Doong-grottan, which means mountain river cave. Scientists say that its age is about five million years.

In our time in the cave are organized hiking. For example, a 7-day tour costs $ 2300. Let's take a virtual tour and see this delightful underworld.

Length cave is generally 87 kilometers.

In the cave you can find rare gems that have emerged over the many, many hundreds of years.