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Season 6, episode 30. 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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Hoover Dam.
The task was monumental: Build the world's largest dam in the middle of the desert, and tame the river that carved the Grand Canyon–all in seven years! When the Hoover Dam was completed in 1935, it was the largest dam in the world. We'll reveal how this engineering wonder of the world was conceived and built.
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Episode 10: Plastics