Modern Marvels
Building a Skyscraper (2): The Exterior (11x36)
Udgivelsesdato: Sep 06, 2004
Skyscrapers are an extraordinary feat of human engineering: exposing millions of pounds of concrete and steel to the enemy forces of wind and gravity. Each of these tools has evolved over the 100-plus year history of the skyscraper era.
- Premieret: Dec 1993
- Afsnit: 809
- Følgere: 76