The WORST episodes of Impossible Engineering

Every episode of Impossible Engineering ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Impossible Engineering!

Impossible Engineering looks at the history of pioneering modern-day mega structures. Behind every seemingly impossible marvel of modern engineering is a cast of historic trailblazers who designed new building techniques, took risks on untested materials and revolutionised their field. It is a tribute to their achievements. Each episode details how giant structures, record-beating buildings, and the world’s most cutting-edge ships, trains and planes are built and work using 3D graphics, archive and specially shot footage. As this series revels in these modern day creations, it leaps back in time to recount the stories of the exceptional engineers whose technological advances made it all possible.

Last Updated: 8/19/2026Network: Science ChannelStatus: Ended
NYC Monster Train
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#1 - NYC Monster Train

Season 6 - Episode 5 - Aired 5/29/2019

New York City is building an 11 billion dollar construction project to extend the busy Long Island Railroad, and using brand-new technology, engineers and builders blast bedrock to create a vast tunnel below Grand Central Terminal.

Conquering Avalanche Country
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#2 - Conquering Avalanche Country

Season 7 - Episode 8 - Aired 2/19/2020

Deadly avalanches and catastrophic flooding are ever-present threats at one of the world's busiest ski resorts, but new technology and cutting-edge construction methods help engineers conquer the elements to keep this mountain-top getaway safe.

World's Highest Bridge
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#3 - World's Highest Bridge

Season 7 - Episode 7 - Aired 2/12/2020

The world's highest bridge impossibly spans an 1,800-foot chasm known as the Crack in the Earth, and to build this engineering marvel, experts use cutting-edge construction technology that can conquer the deadly cliffs of this rugged environment.

Spy Plane Declassified
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#4 - Spy Plane Declassified

Season 7 - Episode 6 - Aired 2/5/2020

A state-of-the-art NATO airplane is one of the most complex surveillance tools in the world. Special access inside the behemoth reveals how cutting-edge engineering and a hi-tech midair refueling system helps its crew defend against security threats.

World's Biggest Airport
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#5 - World's Biggest Airport

Season 7 - Episode 5 - Aired 1/29/2020

Engineers are racing against the clock to build the world's biggest airport, and using cutting-edge construction methods, experts put the finishing touches on a modern-day marvel that will move 100 million people in and out of Beijing every year.

NYC Mega Tower
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#6 - NYC Mega Tower

Season 7 - Episode 4 - Aired 1/22/2020

The skinniest skyscraper in the world will soon become New York's third tallest, and using an innovative, gravity-defying design, this colossal megastructure is breaking all the rules of engineering.

F-35 Fighter Jet
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#7 - F-35 Fighter Jet

Season 7 - Episode 3 - Aired 1/15/2020

The F-35 is the most advanced fighter jet on the planet. Special access into the most expensive military program ever reveals how engineers use cutting-edge tech to outfit this 1,200 mile-per-hour aircraft with a state-of-the-art stealth system.

World's Toughest Tunnels
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#8 - World's Toughest Tunnels

Season 7 - Episode 2 - Aired 1/8/2020

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.

Dubai's Impossible Island
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#9 - Dubai's Impossible Island

Season 7 - Episode 1 - Aired 1/1/2020

The man-made islands of Dubai are modern-day engineering marvels that turn the Arabian Sea into high-priced real estate. Today, a team of expert engineers use cutting-edge technology to build a brand-new city district where there was once only water.

Rise of the Hyperloop
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#10 - Rise of the Hyperloop

Season 6 - Episode 6 - Aired 6/5/2019

Engineers at Virgin are building the world's first hyperloop train system, a high-speed technology that uses magnetic levitation to travel over 600 miles per hour.

Secrets of the Supertanker
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#11 - Secrets of the Supertanker

Season 8 - Episode 1 - Aired 7/15/2020

The world's biggest oil tanker is longer than four football fields and can haul 15,000 trucks worth of oil. Thanks to cutting-edge maritime engineering, this record-breaking vessel makes its deliveries across rough seas quicker and safer than ever.

Himalaya Mega Bridge
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#12 - Himalaya Mega Bridge

Season 6 - Episode 4 - Aired 5/22/2019

Experts use cutting-edge tech and bold engineering to build a record-breaking bridge that spans a deadly chasm in a remote section of the Himalayas. When completed, it will be the world's tallest railway bridge, towering almost 1,200 feet high.

Monster of the Andes
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#13 - Monster of the Andes

Season 6 - Episode 3 - Aired 5/15/2019

When engineers built a cutting-edge railroad to navigate the South American Andes, they used cutting-edge tech and engineering to conquer its deadly heights. This trailblazing train sets new records on one of the most dangerous routes in the world.

The Trains That Built America
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#14 - The Trains That Built America

Season 6 - Episode 2 - Aired 5/8/2019

The first railroads in the United States were engineering marvels built to conquer America's deadliest places. Using cutting-edge science, engineers and builders changed the nation by connecting the California frontier with the rest of the country.

Beasts of the Bayou
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#15 - Beasts of the Bayou

Season 6 - Episode 1 - Aired 5/1/2019

When engineers built railroads across the swamps of New Orleans, they used cutting-edge technology and methods to get it done, and these extreme trains attest to the innovative engineering required to conquer the most challenging water environments.

World's Greatest Yacht
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#16 - World's Greatest Yacht

Season 5 - Episode 10 - Aired 3/7/2019

The Black Pearl is one of the largest and fastest sailing yachts in the world, and using cutting-edge innovations in shipbuilding and engineering, its crew puts this brand-new $200 million vessel through the gauntlet to test its unique capabilities.

Himalayan Mega Train
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#17 - Himalayan Mega Train

Season 5 - Episode 9 - Aired 2/28/2019

To build the world's tallest railway, engineers braved a deadly Himalayan environment and its -40 degree temperatures. The cutting-edge $4 billion train system connects one of the planet's most inaccessible cities to a world beyond the ice.

World's Fastest Car
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#18 - World's Fastest Car

Season 5 - Episode 8 - Aired 2/21/2019

An ambitious team of engineers is building the world's fastest car, and using cutting-edge rocket technology, this record-breaking vehicle will be able to accelerate from zero to 1,000 mph in just 20 seconds.

US Navy's Aircraft Carrier
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#19 - US Navy's Aircraft Carrier

Season 5 - Episode 7 - Aired 2/14/2019

The US Navy's brand-new Ford-class aircraft carrier is the world's largest warship, and using the latest naval and aeronautic technology, engineers and military personnel race to build and test this cutting-edge vessel.

World's Largest Crane Vessel
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#20 - World's Largest Crane Vessel

Season 10 - Episode 1 - Aired 6/9/2021

The largest semi-submersible crane vessel in the world pushes the limits of engineering possibilities; with its two record-breaking cranes, it's one of the most complex ships ever constructed and redefines how we build at sea.

US Combat Helicopter
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#21 - US Combat Helicopter

Season 10 - Episode 10 - Aired 9/1/2021

The V-22 Osprey is a revolutionary feat of aviation engineering that combines the speed and range of an airplane with the landing versatility of a helicopter, allowing the US military to transport troops and cargo into seemingly impossible locations.

Heavy Lift Helicopter
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#22 - Heavy Lift Helicopter

Season 10 - Episode 7 - Aired 8/11/2021

The largest helicopter in the U.S. military arsenal, CH-53E Super Stallion, has completely redefined the capabilities of heavy-lift aircraft; using the latest in cutting-edge engineering, it can transport vast amounts of cargo and personnel, all while under enemy fire.

Scotland's Super Bridge
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#23 - Scotland's Super Bridge

Season 10 - Episode 9 - Aired 8/25/2021

The Queensferry Crossing in Scotland is the longest triple tower cable-stayed bridge in the world, and with record-breaking underwater foundations, it stretches the limits of engineering possibilities and marks a new age of superstructure construction.

US Military Hovercraft
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#24 - US Military Hovercraft

Season 10 - Episode 8 - Aired 8/18/2021

The US military's most advanced hovercraft, Ship-to-Shore Connector (SSC), represents the next generation of amphibious transport vehicles; using the latest in cutting-edge tech, it's designed to carry the heaviest cargo into locations that were previously impossible to reach.

Inside the Super Stadium
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#25 - Inside the Super Stadium

Season 10 - Episode 6 - Aired 7/21/2021

The Singapore National Stadium is a gigantic multipurpose arena that all sits under the world's largest free-spanning dome; expert engineers reveal how this cutting-edge design marks the dawn of a new age in superstructure construction.