4 Season
29 Episode
Building Giants - Season 4 Episode 3 Underground Mega Highway
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.
- Year: 2020
- Country: United Kingdom, United States of America
- Genre: Documentary, Reality
- Studio: Science
- Keyword: skyscraper, civil engineer, engineer
- Director:
- Cast: Julian Barratt