The world's toughest trains have conquered deadly jungles, deserts, and mountains, and were made possible by expert engineering and cutting-edge technology.

The world's busiest cities are kept running by innovative train systems built with expert engineering and cutting-edge technology.

The world's most incredible trains cross deadly canyons and chasms of terrifying heights, and were made possible by expert engineering and cutting-edge technology.

The world's most incredible trains have conquered dangerous oceans and seas, and were made possible by expert engineering and cutting-edge technology.

The Chernobyl disaster created one of the world's deadliest places, and as a temporary fix around the damaged reactor begins to fail, engineers race to build a cutting-edge structure to contain the contamination that could threaten the world.

New York City's biggest construction project ever features several brand-new buildings in Manhattan's Hudson Yards, where an army of ambitious engineers and builders are tasked with developing seven city blocks over 24-hour subway trains.

The US Army's Abrams tank is a 70-ton war machine capable of reaching speeds of 45 miles per hour on the most extreme terrains on earth, but before it enters the battlefield, it must face a set of brutal challenges to put its engineering to the test.

To build the world's biggest offshore wind farm, engineers and builders braved the deadly waters of the North Sea. Using the latest science and tech, these innovators constructed 175 towering turbines that can withstand the most hellish conditions.

An ambitious team of engineers has created an Iron Man-like jet suit that can propel the user over 30 miles per hour, and using cutting-edge technology, these visionaries have made dreams of the distant future a reality.

One of the most cutting-edge buildings in the world is a 16-story hotel built on the cliffs of an abandoned quarry, and using the latest science and tech, engineers race to build this innovative mega-structure with two underwater floors.

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.

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.

To build the world's tallest railway, engineers braved a deadly Himalayan environment and its -40 degree temperatures.

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.

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.

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.

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

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.

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.

Engineers at Virgin are building the world's first hyperloop train system, an innovative high-speed technology that uses magnetic levitation to travel over 600 miles per hour and transform transportation as we know it.

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.

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.

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.

The skinniest skyscraper in the world at 111 W. 57th Street, New York, will soon become the Big Apple's third tallest. Using an innovative, gravity-defying design, this colossal megastructure is breaking all the rules of engineering. Can engineers find a way to build this ultra-tall slender building?

A look at the Beijing Daxing, set to become the biggest airport in the world, designed to accommodate a staggering 100 million travellers each year.