***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.

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.

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.

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 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 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.

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.

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.

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.

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.

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.

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 world's toughest trains have conquered the deadly heights of our tallest mountains, and were made possible by cutting-edge railroads engineered to make impossible climbs and brave extreme weather.

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.

The Kansai International Airport in Osaka Bay, Japan, is built on the largest man-made island in the world. Discover how engineers built an artificial island on top of clay seabed to make the most daring engineering project of modern times a success.

Uncover what it took to build one of the most ambitious rail projects in history, London's Crossrail. This staggering feat will span over 73 miles and transport 200 million people a year around one of the world's largest and busiest cities.

Discover what it took to build the world's tallest freestanding tower, the Tokyo Skytree. This record-breaking marvel faces some of the most deadly disasters on the planet, and must brave earthquakes and extremely high winds.

The world's fastest trains were built with expert engineering and cutting-edge technology, pushing the speed of railroad travel to new limits.

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.

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.