Season 7: Episode 1

Season 7: Episode 3

Impossible Engineering (2015)

Season 7: Episode 2

World's Toughest Tunnels (London's Super Sewer)

TMDb

Air Date:

2025-12-06

Genre

Documentary

Release Date

2015

End Date

2021

Episode Description

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.

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Cast

Ultimate Warship

Skyscraper of the Future

Ultimate Airport

World's Fastest Train

World's Largest Plane

NASA's Rocket to Mars

World's Tallest Bridge

Ultimate Football Stadium

World's Most Powerful Dam

World's Longest Tunnel

World's Biggest Cruise Ship

US Navy's Super Submarine

The Glass Skyscraper

World's Largest Radio Telescope

Panama Canal Overhaul

World's Biggest Ship

Mega City Railway

The Invincible Tower

International Space Station

US Navy's Super Ship

Inside the Tesla Factory

World's Biggest Aircraft

World's Tallest Roller Coaster

Monster Oil Rig

Deadliest Trains

World's Fastest Trains

Mega City Trains

Trains of the Abyss

Monster Mountain Trains

Trains of Deadly Seas

Chernobyl's Toughest Fix

US Army's Super Tank

Skyscrapers of the Deep

The Real Iron Man Suit

Underwater Mega Tower

US Navy's Aircraft Carrier

World's Fastest Car

Himalayan Mega Train

World's Greatest Yacht

Beasts of the Bayou

The Trains That Built America

Monster of the Andes

Himalaya Mega Bridge

NYC Monster Train

Rise of the Hyperloop

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)

Secrets of the Supertanker (Supertanker Europe)

Seattle Super Bridge (Seattle's Floating Bridge)

Texas Super Skyscraper (The Independent)

World's Strongest Ship (Boka Vanguard)

Largest Plane: Stratolaunch

World’s Greatest Waterworks (South-North Water Diversion)

Kings of the Battlefield (Infantry Assault)

Titan on the Water (The Falkirk Wheel)

World's Largest Crane Vessel

Mars Rover Declassified

World's Greatest Submarine

Abandoned Resurrection

Firefighting Sky Giant

Inside the Super Stadium

Heavy Lift Helicopter

US Military Hovercraft

Scotland's Super Bridge

US Combat Helicopter

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