***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 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.

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.

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.

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

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.

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.

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.

Experts reveal the engineering behind the largest firefighting aircraft.

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

An abandoned power station is undergoing a cutting-edge reinvention.

How did engineers move mountains to build the longest and deepest rail tunnel on the planet? Discover how 25 million tons of rock were moved to build this modern wonder, the Gotthard Base Tunnel.

The deepest-diving submarine is a monumental feat of engineering.

For NASA to send a person to Mars, they will need to build the most powerful rocket ever built. Discover inside story behind the Orion Space Craft, an engineering feat designed to sustain astronauts for years in one of the universe's harshest environments.

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 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.

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

Experts reveal the engineering behind the Singapore National Stadium.

How did engineers build the tallest bridge on the planet? As tall as a skyscraper, the Millau Viaduct braves deadly wind speeds over an immense abyss, and we go inside the story behind this modern wonder.

Experts reveal the revolutionary engineering behind the V-22 Osprey.

The AT and T Stadium in Texas is home to the Dallas Cowboys and the world's largest retractable roof. This $1.2 billion stadium can house over 100,000 fans, and we'll go inside how this engineering feat was built.

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.