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Building Giants Season 4 Episode 3 Underground Mega Highway 2020

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.

  • Released: 2020-05-20
  • Runtime: 45 minutes
  • Genre: Documentary, Reality
  • Stars: Julian Barratt
  • Director:
Download : MKV
Download : MP4

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