As we navigate the maze-like passages, we stumble upon a hidden cave deep within the mine, leading us into an incredible underground world. With ropes guiding the way, we descend into crystal ...

If organisms can survive for tens of thousands of years locked inside minerals, subsisting on compounds that aren’t typically used as sustenance by living things, microbes hitching rides on meteorites ...

Discovered in 1999 inside an abandoned mine in Southern Spain, Pulpí Geode is the largest crystal 'cave' of its kind in the world. But what exactly is a geode and how do crystals form inside them?

Kartchner Caverns State Park is known for its diversity of minerals. On March 1, park staff spotted one that's particularly ...

Naica’s Crystals Cave, maybe the most amazing underground wonder on Earth, was discovered by chance inside the deep mine of Naica, in the State of Chihuahua, Mexico. It is a true geode: a cave ...

Deep under the Chihuahuan Desert is a natural wonder, a cave filled with beautiful giant crystals, but which also happens to be a potential death trap.

U.S. News Insider Tip: Café Olé, just outside the Crystal & Fantasy Caves, has one of the best fish sandwiches on the island. A sun hat is essential because you'll sit in the garden while they ...

From deep inside the cave, they could begin to solve the mystery ... Inside it was dark, warm and musty-smelling. Tiny crystals sparkled across the walls, and stalactites hung from the ceiling ...

Once submerged under the sea millions of years ago, the Cayman Crystal Caves were shaped by water erosion, creating rooms filled with stalagmite and stalactite formations. Over time, dripping ...