Building Giants Season 2 Episode 6 Mega Mountain Tunnel 2019
7.667/10 by 3 users
As engineers race to build a brand-new train tunnel beneath the Alps, they use cutting-edge tech and the latest construction methods to build the world's longest underground railroad in some of the most dangerous conditions on earth.
- Released: 2019-09-11
- Runtime: 45 minutes
- Genre: Documentary, Reality
- Stars: Julian Barratt
- Director:
