How Did They Build That?

Smithsonian Channel

Friday 16 December 2022  00:00 - 01:00 (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) Friday 16 December 2022 00:00 - 01:00