How Did They Build That? (2021)

How Did They Build That? (2021)

Heights & Balance (3x5)


Air date: Sep 15, 2024

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world’s longest suspension footbridge is constructed in Czechia.

  • Premiered: Jan 2021
  • Episodes: 28
  • Followers: 4
  • Running
  • Smithsonian Channel
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