9 الموسم
77 حلقة
Extreme Engineering - Season 9 Episode 1 الحلقة 1
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.
- عام: 2011
- بلد: United States of America
- النوع: Documentary
- ستوديو: Discovery
- الكلمة الرئيسية: engineering
- مخرج:
- المصبوب: