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Take an eye-popping look at the greatest structures and machines ever created as we focus on some of the world's modern-day super-human miracles of construction. |
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| Ratings: | TVMaze: No Rating | |
| Released: | September 15, 2004 | |
| Runtime: | 60 min | |
| Countries: | United States | |
| Companies: | National Geographic Channel National Geographic | |
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