Crystal Cave of the Giants

Photographer Richard D. Fisher has chronicled the interior of one of the most amazing caves on Earth – the Crystal caves of Chihuahua Mexico. The temperature and humidity are so high that humans can only bear the environment for a few minutes at a time. The cave contains crystals that weigh many tonnes and cover the walls and floors. Check out the photos at http://www.canyonsworldwide.com/crystals/index.html

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