Colossal Construction
Manapouri Tunnel (1x27)
Udgivelsesdato: Okt 17, 2009
In order to tap the vast potential energy of New Zealand's Manapouri lake, a six mile tunnel must be carved out of some of the toughest rock on the planet, in a place where yearly rainfall is measured in feet instead of inches.
- Premieret: Dec 2008
- Afsnit: 28
- Følgere: 1