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How Did They Build That? 2021

  • 2018-01-08T05:00:00Zs at 2018-01-08T05:00:00Z on Smithsonian Channel
  • 2021-01-03T05:00:00Z
  • 43m
  • 13h 14m (18 episodes)
  • United States
  • English
  • Curve Media
  • Documentary
An exploration of how some of the world's biggest man-made structures were built.
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2 seasons

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