![Into the Lost Crystal Caves Into the Lost Crystal Caves](https://img.arc018.to/resize/180x270/7a/15/7a15c0a887c15e3ecf5dab661d189bfb/7a15c0a887c15e3ecf5dab661d189bfb.jpg)
Into the Lost Crystal Caves
Inside one of the world's greatest natural wonders, a massive crystal cave characterized as Superman's fortress, with crystals up to 36 feet long and 55 tons. A team of experts enters the tunnel, experiencing temperatures that might kill a human in 15 minutes. They'll strain their bodies to the limit to find a chasm that may lead to another, more beautiful crystal cave.