8 Lesser-Known Places to Visit before You Die

Sơn Đoòng Cave

1. Sơn Đoòng Cave, Vietnam
The Sơn Đoòng Cave is one of the largest in the world. Located in Vietnam, it was discovered by a local in 1991. Recently open for guided tours, visitors can expect to find stalagmites, ancient fossils, cave dwelling animals and jungles amongst this picturesque cavern. This massive creation also houses an underground river.