The incredible underwater lava tunnel that's the world's largest - 4.7 miles long
This massive underwater volcanic tunnel features lava caves, lakes, a concert hall, and a fascinating blend of subterranean ...
How Life Thrives In The World’s Most Toxic ‘Poison Cave’—Undiscovered For Over 5 Million Years
With high carbon dioxide, low oxygen and no photosynthesis, here’s how an entire ecosystem persists in Movile Cave, one of the most extreme environments on Earth.
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Inside World’s Largest and Richest Gold Mine—A $40 Billion Treasure Trove
Deep in the rugged mountains of Papua, Indonesia, one of the most astonishing mining operations on Earth continues to shape ...
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Crystal Cave Discovered Inside a Marble Mine
Join us on an epic adventure as we explore one of the biggest mines we've ever seen—complete with towering 70-foot ceilings and endless tunnels! As we navigate the maze-like passages, we stumble upon ...
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Spectacular And Short-Lived: Go Inside Ice Caves On A Swiss Glacier
Adventurous hikers from around the world are ... but to go inside it. The frigid, winter weather has provided the rare opportunity to step inside and explore stunning caves carved under the ...
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I Hiked Out on Some of the World’s Oldest Rocks, and Here’s What I Saw
A rock formation in Minnesota has exposed some of the oldest rocks on the surface of the planet, and visiting it is a ...
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Hotels are so last year – why everyone’s sleeping in castles, caves and cranes
These regal retreats invite travelers into a fairy tale while enjoying world-class hospitality and ... Sleeping in a cave might sound primitive, but today’s cave hotels offer a surprisingly ...