Megastructures
Norad (Spy Fortress) (2005x20)
Data de estreia: Out 25, 2005
Examining construction of North American Aerospace Defense Command (NORAD) in the Colorado mountains. Including the technical challenges it presented.
- Estreia: Set 2004
- Episódios: 196
- Seguidores: 10
- Acabou
- National Geographic
- Terça-Feira às 10