World's Most Extreme Season 1 Tunnels 2014
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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.
- Released: 2014-12-15
- Runtime: 45 minutes
- Genre: Documentary
- Stars:
- Director:
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2. Bridges 2014-09-09
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3. Railways 2014-09-23
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4. Waterways 2014-12-01
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5. Airports 2014-12-08
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6. Tunnels 2014-12-15
