The discovery of more than 100 prehistoric structures in the Cova Dones cave in Spain makes it one of the most significant prehistoric underground sites in the world. Archaeologists found stalagmites ...

A non-profit group worked to clean and restore caves in Decorah after trash and graffiti were found inside.Iowa Grotto, ...

A woman has fallen 100 feet to her death while exploring inside a cave in Virginia, according to authorities. The fall happened on Friday at approximately 4:13 p.m. when authorities at the Giles ...

The diver, who helped rescue the Thai boys trapped, is in good health. A highly-experienced British diver who went missing as he explored an underwater cave east of Nashville has been rescued. The ...

This lava tube is reportedly the third-longest in all of North America, trailing Hawaii’s 40-mile Kazumura Cave and the less-publicized 9-mile Deadhorse Cave system near Washington’s Mount Adams.