This story appears in the June 2019 issue of National ... of Hang Son Doong stood the Great Wall of Vietnam, a 200-foot barrier to be conquered by both ladder and rope climbing. In a cave there ...

This story appears in the January 2011 issue of National Geographic magazine ... A jungle inside a cave? A roof collapse long ago in Hang Son Doong let in light; plants thickly followed.

In fact, Hang Son Doong is now believed to be the largest known cave on the planet. When National Geographic Explorer and photojournalist Martin Edström learned about Hang Son Doong, he realized ...

Son Doong, the world's largest cave in central Vietnam ... Other surreal destinations in the list include Iceland's Vatnajökull National Park, Brazil's Lencois Maranhenses, and Bolivia's Salar ...

The world’s largest cave is over five miles long - so big that even a Boeing 747 could fit inside it. Hang Son Doong is in Phong Nha-Ke Bang National Park in Vietnam, near the border with Laos ...

The limestone cavern sits beneath a lush jungle in Vietnam's Phong Nha-Ke Bang National Park and hosts primeval forests that ...