Modern Marvels
Building a Skyscraper (2): The Exterior (11x36)
Data di messa in onda: Set 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.
- Iniziato: Dic 1993
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