The Best Episodes of Impossible Engineering Season 6

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.

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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.

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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.

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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.

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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.

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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.

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