Hidden beneath the Earth’s surface are caves filled with enormous crystal formations that look almost unreal. These ...

Deep beneath the sun-scorched plains of northern Mexico, an astonishing underground cave defies belief. In the heart of the Naica Mine, a silver and lead extraction site in Chihuahua, miners once ...

Add Yahoo as a preferred source to see more of our stories on Google. The interior of the Cave of Crystals in Mexico with a person for scale. The Cave of Crystals is an underground cavern filled with ...

Inside Look is a Fresno Bee series where we take readers behind the scenes at restaurants, new businesses, local landmarks and news stories. After a four-year closure due to natural disasters, Crystal ...