Into the Lost Crystal Caves

Into the Lost Crystal Caves

NGC takes viewers inside one of the world's greatest natural wonders - a massive crystal cave dubbed Superman's stronghold, complete with stunning crystals measuring up to 36 feet in length and weighing 55 tons. A team of experts enters the underground, braving temperatures that might kill a human after only 15 minutes. They'll defy physical limitations in order to investigate a chasm that may lead to another-and probably more magnificent-crystal tunnel.
Released: 2010-10-09
Genre: Documentary
Casts: Robin Ward,
Duration: N/A min
Country: Canada
Production: National Geographic

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