The Crystal Cave of Giants located inside the Naica Mine in Chihuahua Mexico was accidentally discovered in 2001 by two working miners. The vibrations are so immense heat prevents them from studying this site further. by Kelsey Leigh
The Marble Caves is geological formation of unusual beauty. These caves have formed in a pure marble and are bathed in the deep blue water of General Carrera Lake. Chile, the Marble Caves are some of the most impressive attractions of Patagonia.