5 of the World’s Most Secure Vaults & Bunkers

shared by NickCobb on Jan 09, 2013 in Other

5 of the World’s Most Secure Vaults & Bunkers

shared by NickCobb on Jan 09, 2013 in Other

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From seed banks to famous Fort Knox, securing valuables from would-be criminals and Mother Nature’s elements isn’t a job the designers of these engineering marvels took lightly.
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