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 ...

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 ...

In January 2006 Speleoresearch & Films and the Team la Venta started a three year exploration campain to discover the Naica cave, Chihuahua, Messico. "It seems like walking into an oven. You're hit by ...

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 ...