The World’s Five Most Secure Vaults [INFOGRAPH]

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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. Take a look at this infograph for the world’s five most secure vaults.

5 of the Worldâ??s Most Secure Vaults & Bunkers
5 of the Worldâ??s Most Secure Vaults & Bunkers infographic

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