Megastructures
Norad (Spy Fortress) (2005x21)
Fecha de emisión: Oct 25, 2005
Examining construction of North American Aerospace Defense Command (NORAD) in the Colorado mountains. Including the technical challenges it presented.
- Estrenada: Sept 2004
- Episodios: 160
- Seguidores: 10
- Finalizado
- National Geographic
- Martes a las 20