How Did They Build That?

Smithsonian Channel

Thursday 15 December 2022  21:00 - 22:00 (60 mins)
We uncover the design and engineering secrets behind the Grand Canyon Skywalk, the award-winning Audain Museum, and more.

How Did They Build That? (Smithsonian Channel) Thursday 15 December 2022 21:00 - 22:00