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 ...

Charlie has an undergraduate degree in Forensic Psychology and writes on topics from zoology and psychology to herpetology.View full profile Charlie has an undergraduate degree in Forensic Psychology ...

Last month, researchers from the Great Maya Aquifer Project announced the discovery of the world's largest underwater cave system in Yucatán after realizing that two massive cave systems in the ...