9 Sæson
77 Episode
Extreme Engineering - Season 9 Episode 1 Afsnit 1 (2011)
Danny takes us to New York City, where the largest public works project in the country is happening: a $15 billion expansion of the NYC transit system. He heads 150 feet underground to find out what can be done without shutting down the city above.
- Land : United States of America
- Genre : Documentary
- Studio : Discovery
- Direktør :
- Cast :
