A Whole New World Discovered By A Farmer After Seeing A Hole In The Rock

At more than 200 meters tall, it fit a 40-story high-rise inside. What's more, at more than 150 meters wide, it could comfortably hold a 747. Vietnam's Hang Son Doong is the biggest cave in the world, and taking a visit is basically remarkable.

A Guided Trip


Guided trips take seven days and cost $3,000. This includes five nights of camping in the cave.

Rare Pearls In The Cave


The cave is also rich in rare pearls, which are created when calcium salts form concentric layers around a grain of sand.