World's Toughest Tunnels (London's Super Sewer) (S07E02)
S07E02
A group of engineers is revamping London's underground system to create a state-of-the-art sewer network. Employing advanced technology and innovative construction techniques, they aim to upgrade a centuries-old infrastructure into a contemporary marvel.
Show
Impossible Engineering
Episode
S07E02
Air Date
Jan 08, 2020
Season 7 Episodes
S07E01
Dubai's Impossible Island (Bluewaters)
S07E02
World's Toughest Tunnels (London's Super Sewer)
S07E03
F-35 Fighter Jet (F35 Lighting II)
S07E04
NYC Mega Tower (111 W. 57th Street)
S07E05
World's Biggest Airport (Beijing Daxing)
S07E06
Spy Plane Declassified (Nato AWACS)
S07E07
World's Highest Bridge (Beipanjiang)
S07E08
Conquering Avalanche Country (Whistler, Canada)