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Impossible Engineering
Season 2 • Episode 5 • World's Longest Tunnel
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Impossible Engineering Season 2, Episode 5: World's Longest Tunnel
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. Watch Impossible Engineering Season 2, Episode 5 World's Longest Tunnel in HD free online. Enjoy high-quality streaming of Impossible Engineering Season 2, Episode 5 and share your thoughts in the comments below!
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Episodes
8 episodes
NASA's Rocket to Mars
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World's Most Powerful Dam
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World's Longest Tunnel
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.
42 min
World's Biggest Cruise Ship
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42 min
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