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MegaStructures

Season 3, episode 5. This player now records resume state for the active profile so browse, account, and detail pages can bring you back here quickly.

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S3 E5

Hoover Dam

Explore the US Treasury's impenetrable subterranean vaults housing monster money-making machines that churn out billions of dollars. See the army of protectors that ensure the world's most powerful economy with the mantra: "In God We Trust". Discover the elaborate systems of design and protection at the US Treasury premier currency manufacturer and her sister operation, the Bureau of Engraving and Printing.

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Season 3

Back to series detail

Episode 1: Berlin Wall

Episode 2: Impossible bridges: Denmark to Sweden

Episode 3: Impossible Bridges: Greece

Episode 4: Apache Helicopter

Episode 5: Hoover Dam

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Episode 6: Inside NCIS

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Episode 8: Garbage Mountain

Episode 9: Ice Hotel