The Why Files on MSN25d
Legend of the 13 Crystal Skulls | From Mars to the MayaPackard's crystal lab had tested thousands of specimens, but they'd never seen anything like this. The Mitchell-Hedges crystal skull defied everything they knew about physics and engineering.
So began the latest astonishing twist in our quest to find the truth about the 13 crystal skulls said to have come into the possession of the Mayan people, one of the ancient world's most ...
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