![Extreme Engineering](https://image.tmdb.org/t/p/w342/y2Ojs6gFwVhJvGA3MsPgVJOYT0U.jpg)
9 Stagione
77 Episodiu
Extreme Engineering - Season 8 Episode 8
The Swiss government is spending 18 billion dollars to create the Gotthard Base Tunnel - the longest tunnel in the world, getting people and goods through the Alps up to 3 times faster and ultimately changing European transit forever.
- Annu: 2011
- Paese: United States of America
- Genre: Documentary
- Studio: Discovery
- Parolla chjave: engineering
- Direttore:
- Cast: