According to this vintage brochure for Meramec Caverns, the caverns had geological formations which would “give the greatest protection against atomic shock and radiation. A modern Noah’s Ark is anticipated.”
Tuesday, March 22nd, 2011, 3:49 am | 
Amusement Park, Ephemera, Paging Dr Quackery | 
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May 24, 2011 at 4:21 pm