An expert team of engineers use hi-tech explosions and state-of-the-art drilling rigs to tear through solid granite and build an 11-mile underground tunnel, one of the longest in the world. |
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Title: | Underground Mega Highway | |
Air Date: | May 20, 2020 | |
Runtime: | 60 min | |
Kardat : Indeed, if they pick one back up, they should continue SGU. It had so much potential, and...