Impossible Engineering — Season 2, episode 5 watch online
Impossible Engineering, season 2 episode 5 «World's Longest Tunnel»: air date April 13, 2016. Episode overview, season trailer and the cast of Impossible Engineering.
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 has a length of 35.47 miles through the Alps in Switzerland. It opened on 1 June 2016.
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Episodes — Season 2
- 1 Episode 1 «NASA's Rocket to Mars» March 16, 2016
- 2 Episode 2 «World's Tallest Bridge» March 23, 2016
- 3 Episode 3 «Ultimate Football Stadium» March 30, 2016
- 4 Episode 4 «World's Most Powerful Dam» April 6, 2016
- 5 Episode 5 «World's Longest Tunnel» April 13, 2016
- 6 Episode 6 «World's Biggest Cruise Ship» April 20, 2016
- 7 Episode 7 «U.S. Navy's Super Submarine» April 27, 2016
- 8 Episode 8 «The Glass Skyscraper» May 4, 2016