9 Season
77 Episode
Extreme Engineering - Season 1 Episode 6 Tunneling Under the Alps
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.
- Year: 2011
- Country: United States of America
- Genre: Documentary
- Studio: Discovery
- Keyword: engineering
- Director:
- Cast: