Seventeen years ago, two brothers who worked for Industrias Peñoles were mining a tunnel underneath the Naica Mountain in Chihuahua, Mexico. They accidentally stumbled upon the Sistine Chapel of ...

The Cave of Crystals is an underground cavern filled with tree-size gypsum crystals, including some of the largest natural crystals ever found. The cave is located around 980 feet (300 meters) deep ...

Some of the Earth's most incredible features lie beneath its surface. Caves often hold fascinating secrets, from the world's largest underwater cave, which is full of human remains, to the Cave of the ...

Crystals are the new black, and for good reason. The powerful minerals not only help balance out our energetic fields, thanks to their nearly perfect molecular structures, but they’re also just ...

These huge gypsum crystals in Mexico's Naica caves, some up to 12m long, have been growing for tens of thousands of years -- but scientists have only now discovered what's inside them. "We've ...

Deep below a mountain near Naica, Mexico, miners searching for fresh ore deposits in 2000 came across an unexpected and awesome sight. Massive, milky-white crystals towered around them, filling a ...