How Did They Fix That?
Airing | 11/4, 7:00p
S4 E6 | Tunnel Vision
1h 0m|TVPG|Documentary|Smithsonian Channel|2025
Mike joins crews as they build the world's longest railway tunnel in the Alps, fixing gridlock through the infamous Brenner Pass by drilling, blasting and digging their way through the mountains.
GENREDocumentary
DETAILSNetwork: Smithsonian Channel
Runtime: 1h 0m
Rating: TVPG