Superb presentations.

Also see Hoover Dam explanation by same author.

This is an hour and a half long, but after the first ten minutes I know I will make time to watch the whole thing.

See also on Open Culture:

How the Golden Gate Bridge Was Built: A 3D Animated Introduction

https://www.openculture.com/2026/02/how-the-golden-gate-brid...

Building the Golden Gate Bridge: A Retro Film Featuring Original Archival Footage

https://www.openculture.com/2012/05/building_the_golden_gate...