
6 Fasl
41 Qism
Mega Builders - Season 6 Episode 1
Return to the 57-kilometer long high-speed rail tunnel in Switzerland's Gotthard Mountain range to see what it will take to finish the project by 2017.
- Yil: 2012
- Mamlakat: Canada, Germany, United States of America
- Janr: Documentary
- Studiya: Discovery
- Kalit so'z: technology
- Direktor:
- Cast: