Modern Marvels
Building a Skyscraper (1): The Skeleton (11x35)
Date de diffusion: Sept 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.
- Première: Déc 1993
- Épisodes: 809
- Abonnés: 76