Mountain-rappeling scientists uncover a crossbow bolt, part of a slingshot and 25 ancient shoes in vulture nesting sites ...

Then there’s the two subterranean lakes that have made the cave so iconic. The deep blue lakes look like the waters around ...

Head to Preston, Minnesota, where Mystery Cave showcases 13 miles of fascinating underground passages and special lantern ...

Explorers recently mapped a cave system approximately 16 miles in length running adjacent to a river, revealing massive ...