MegaStructures - Season 6 Episode 2 Soviet Doomsday Sub
Perched 4,000 feet above the Colorado River on the very edge of the Grand Canyon is one of the most recent and innovative engineering marvels of our time. The Grand Canyon Skywalk, opened to the public in March 2007, is an engineering masterpiece united with natural wonder. It is the first ever cantilever designed glass bridge. Constructed in a horseshoe shape, visitors are given the chance to walk out over the edge of the canyon and look straight down. It's about 4,000 feet above the canyon, which is higher than any of the world's largest buildings and extends 70 feet from the edge. Take a closer look at the Skywalk's design, construction and the people that made it a reality.
Year: 2012
Genre: Documentary
Country: United States of America
Studio: National Geographic
Director:
Cast:
Crew:
First Air Date: Jan 01, 2004
Last Air date: May 24, 2012
Season: 9 Season
Episode: 158 Episode
Runtime: 60 minutes
IMDb: 7.00/10 by 14.00 users
Popularity: 77.967
Language: English, French, Hungarian
Keyword :
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