How Did They Build That? Season 4 Episode 3

How Did They Build That? Season 4 Episode 3 Speedcore & Steambend

  • August 10, 2025
  • 44 min

A railway-spanning library mimics the clouds. A speed-core skyscraper is built in record time. And a world first bridge inspired by a child's toy.

Own Episode
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Description
Watch How Did They Build That? - Speedcore & Steambend (s4 e3) Online - Watch online anytime: Buy, Rent
How Did They Build That?, Season 4 Episode 3, is available to watch and stream on Smithsonian Channel. You can also buy, rent How Did They Build That? on demand at Prime Video, Google Play online.
  • First Aired
    August 10, 2025
  • Runtime
    44 min
  • Language
    English
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