Uploaded June 2013 | Updated September 2026, 37 minutes ago
The creation and design of a skyscraper is fantastic, and this program takes you into the history of these massive structures. (From Discovery Channel's "Understanding Skyscrapers")
The creation and design of a skyscraper is fantastic, and this program takes you into the history of these massive structures. (From Discovery Channel's "Understanding Skyscrapers")
