Aired Sunday August 1,
6:00am - 7:10amon Yesterday +1
Impossible Engineering
Series 2 Episode 5: Gotthard Base TunnelExploring how engineers move mountains to build the longest and deepest rail tunnel, the Gotthard Base Tunnel, with a total length of 57 km.
- Category
- Documentary / Educational / Science / Technology
- Original air date
- 2016-04-13
Cast and crew