Megastructures
Spy Fortress NORAD (2x20)
Ausstrahlung: Okt 25, 2005
Examining construction of North American Aerospace Defense Command (NORAD) in the Colorado mountains. Including the technical challenges it presented.
- Premiere: Sep 2004
- Episoden: 196
- Anhänger: 10
- Geendet
- National Geographic
- Dienstag um 10