Impossible Engineering Season 7 Episode 2 World's Toughest Tunnels 2020
6.9/10 by 13 users
A team of engineers are overhauling London's underground infrastructure to build a world-class sewer system. Using cutting-edge tech and the latest construction methods, they work to transform a centuries-old network into a modern-day masterpiece.
- Released: 2020-01-08
- Runtime: 42 minutes
- Genre: Documentary
- Stars: Mike Bratton
- Director:
