Cave of the Crystals en.wikipedia.org 38 points by ColinWright 6 days ago · 2 comments Reader PiP Save Collapse all Expand all 2 threads d3Xt3r a few seconds ago Relevant: https://en.wikipedia.org/wiki/Crystal_Caves coreylane 3 hours ago Saw a cool documentary on this recently https://www.youtube.com/watch?v=1m34WwMICZA