From the Swiss Alps to a Japanese metropolis, tunnels are often wonders of modern construction, but can also be scenes of disaster. These are the 10 most extreme tunnels on Earth.
| Title | World's Most Extreme - Season 1 Episode 6 Tunnels |
|---|---|
| Year | 2018 |
| Genre | Documentary |
| Country | United Kingdom |
| Studio | Travel Channel, More4 |
| Cast | |
| Crew | |
| Alternative Titles | En zone dangereuse, Extrém világ, Najniebezpieczniejsze miejsca świata |
| Keyword | |
| First Air Date | Sep 02, 2014 |
| Last Air date | Dec 10, 2018 |
| Season | 2 Season |
| Episode | 12 Episode |
| Runtime | 45:14 minutes |
| Quality | HD |
| IMDb: | 4.00/ 10 by 1.00 users |
| Popularity | 4.428 |
| Language | English |
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