The World’s Weirdest Natural Places

Published September 12, 2014
Updated February 27, 2018

Weirdest Natural Places: Son Doong Cave

It really wouldn’t be too far-fetched to come across a pterodactyl gently nesting inside this place…Located in Vietnam, near the border with Laos, Son Doong Cave is the biggest known cave in the world.

Son Doong Cave Photo

Image Source:

Just how big is it? Son Doong stretches for about 30,000 feet, and its biggest chamber is over 650 feet tall. To put that in perspective, we could put the Gateway Arch from St. Louis inside the cave and there would still be room on top. The cave was only just found in 1991, and it wasn’t until 2010 that people actually managed to reach its end. This is because of a giant, 200-foot-high calcite wall later named the Great Wall of Vietnam.

Weirdest Natural Places Son Doong Cave

Image Source: The Huffington Post

Would you like to visit it? Good news! You can…possibly. In 2013, the first tourist group ever was taken inside and more tours are now happening. All you need is years of spelunking experience and about $3,000 (plus the money to get to Vietnam and back).

Doong Entrance

Image Source: HDW Papers

Doong Wall

Image Source: WIWO


For more out-of-this-world landscapes, explore the most surreal places around the world. Finally, check out Nevada’s bizarelly beautiful Fly Geyser.

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All That's Interesting is a Brooklyn-based digital publisher that seeks out the stories to illuminate the past, present, and future.