A sort of south-of-the-border Fortress of Solitude, Mexico's Cueva de los Cristales (Cave of Crystals)
April 9, 2007�Geologist Juan Manuel Garc�a-Ruiz calls it "the Sistine Chapel of crystals," but Superman could call it home.
Now Garc�a-Ruiz is advising the mining company to preserve the caves.
"There is no other place on the planet," Garc�a-Ruiz said, "where the mineral world reveals itself in such beauty."
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