***This episode is a duplicate of S09E02, which is the correct episode number on IMDB and TVDB*** Chinese authorities attempt a huge infrastructure project as they try to move vast amounts of water from the wet south of the country to the dry north.

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 world's largest aircraft combines the latest in technology and engineering to dwarf everything else in the skies. This marvel can stay airborne for five days and land anywhere in world, whether on land or at sea.

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.

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.

The world's largest heavy-left ship, the Boka Vanguard, can carry entire cruise ships halfway across the globe without stopping, and to do this, experts use cutting-edge maritime engineering and the latest science for herculean strength and first-class maneuverability.

Kingda Ka is the tallest roller coaster in the world and fastest in the U.S., redefining the design of all thrill rides. This engineering colossus is one of the most innovative on the planet and features the fastest drop ride ever built.

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.

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.

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 world's highest bridge, the Duge Bridge or Beipanjiang 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.

The Falkirk wheel is the first and only rotating boat lift, capable of moving 600 tonnes of boat and water over a 25-metre height difference in just minutes.

A brand-new Mars rover might discover extraterrestrial life.

Go inside the ambitious engineering project that remade the famous Panama Canal. Billions of dollars were spent to move millions of cubic tons of earth, and ultimately, the canal will be able to accommodate the biggest ships in the world.

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.

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.

Test pilots and engineers embark on the first flight of the largest airplane ever built: the Stratolaunch, a one-of-a-kind aircraft designed to transport rockets, spacecraft and experimental hypersonic planes into the stratosphere.

The world's largest crane vessel pushes the limits of modern engineering.

Experts reveal the engineering behind the Singapore National Stadium.

Go inside a state-of-the-art research base located in Antarctica, the coldest continent on Earth. Halley VI is built atop giant skis on a floating ice shelf, and this innovative design helps scientists brave the dangers of this extreme environment.

The International Space Station is the most expensive engineering project ever attempted, and the result is a masterpiece of modern ingenuity. This incredible vessel pushes the boundaries of space exploration and brings us closer to galactic colonization.

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

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.

Engineers in Seattle are building the world's first floating railway bridge, and to tackle this complex engineering challenge, they use new, innovative construction technology that enables high-speed trains to go where they've never gone before.

The Queensferry Crossing in Scotland marks a new age of superstructure construction.