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9 Mevsim
77 Bölüm
Extreme Engineering - Season 9 Episode 1 1. Bölüm
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.
- Yıl: 2011
- Ülke: United States of America
- Tür: Documentary
- Stüdyo: Discovery
- Anahtar kelime: engineering
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