Underground crystals
Amazing place. Holds the worlds biggest crystals. Not easy to visit though! Warm, humid and 300m underground. Probably feels like being at crush depth...
Crystal Cave of Giants
Looks like a scfi-movie. 
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"The only remedy for madness is the innocence of facts."
O. Mirbeu
"A paranoid is simply someone in possession of all the facts."
W. B.
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