![Extreme Engineering](https://image.tmdb.org/t/p/w342/y2Ojs6gFwVhJvGA3MsPgVJOYT0U.jpg)
9 Musim
77 Episode
Extreme Engineering - Season 1 Episode 6
A tunnel over 35 miles long is to be dug under the Swiss Alps to redirect Europe's traffic. This $7 billion project will take 6 years to complete with man and machine fighting the mountains 24/7.
- Tahun: 2011
- Negara: United States of America
- Aliran: Documentary
- Studio: Discovery
- Kata kunci: engineering
- Direktur:
- Pemeran: