==Discovery Channel - Impossible Engineering Series 2 (2016) Part 5 Worlds Longest Tunnel==

[[http://forums.mvgroup.org/index.php?showtopic=65692|Discovery Channel - Impossible Engineering Series 2 (2016) Part 5 Worlds Longest Tunnel]] {{:hdimage.jpg?20|}}

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**Impossible Engineering Series 2**
 
Recount the stories of exceptional engineers whose technological advances made it all possible. This season discover how engineers build the tallest bridge on the planet. Learn the inside story behind the Orion Space Craft and marvel at the AT&T Stadium, home to the Dallas Cowboys and the world's largest retractable roof.

**Part 5 Worlds 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.


==See Also==



==Trailer==

,,Full Version Available Upon Request,, \\
,,Episode One Shown Here,,\\

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