Modern Marvels - 11x36 Building a Skyscraper (2): The Exterior

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.

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  • Aired Sep 06, 2004
  • Episode 11x36
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