Cave of the Crystals
This is the Cave of the Crystals. The cave is linked to the Naica Mine. Miners discovered the location in 2000 while hollowing out a new tunnel for the company Industrias Peñoles. Researchers credit Juan and Pedro Sanchez as the first miners to stumble on it. The site contains some of the largest selenite crystals on the planet. One is 37.4 feet (11.40 meters.) The cave has gone relatively unexplored because of its scorching temperatures.