Impossible Engineering
S07E02 World's Toughest Tunnels (London's Super Sewer)
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.
Season 7 Episodes
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3
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5
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7
8
Dubai's Impossible Island (Bluewaters)
World's Toughest Tunnels (London's Super Sewer)
F-35 Fighter Jet (F35 Lighting II)
NYC Mega Tower (111 W. 57th Street)
World's Biggest Airport (Beijing Daxing)
Spy Plane Declassified (Nato AWACS)
World's Highest Bridge (Beipanjiang)
Conquering Avalanche Country (Whistler, Canada)