![Addison Airport Toll Tunnel](https://c1.vgtstatic.com/thumb/1/3/134313-v1/addison-airport-toll-tunnel.jpg)
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![Neppvik Tunnel](https://c1.vgtstatic.com/thumb/1/3/134457-v1/neppvik-tunnel.jpg)
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![Steinberg Tunnel](https://c1.vgtstatic.com/thumb/1/3/134615-v1/steinberg-tunnel.jpg)
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![Soller tunnel](https://c1.vgtstatic.com/thumb/1/4/144621-v1/soller-tunnel.jpg)
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![North Cape Tunnel](https://c1.vgtstatic.com/thumb/1/0/107837-v1/north-cape-tunnel.jpg)
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![John H. Wilson Tunnels](https://c1.vgtstatic.com/thumb/1/3/134255-v1/john-h-wilson-tunnels.jpg)
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![Bubenholz Tunnel](https://c1.vgtstatic.com/thumb/1/3/134398-v1/bubenholz-tunnel.jpg)
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![Breivikhammer Tunnel](https://c1.vgtstatic.com/thumb/1/3/134557-v1/breivikhammer-tunnel.jpg)
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![Heroes Tunnel](https://c1.vgtstatic.com/thumb/8/7/87041-v1/heroes-tunnel.jpg)
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![Øksfjord Tunnel](https://c1.vgtstatic.com/thumb/1/3/134194-v1/ksfjord-tunnel.jpg)
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![Addison Airport Toll Tunnel](https://c1.vgtstatic.com/thumb/1/3/134348-v1/addison-airport-toll-tunnel-2.jpg)
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![Saksenvik Tunnel](https://c1.vgtstatic.com/thumb/1/3/134489-v1/saksenvik-tunnel.jpg)
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![Muskö Tunnel](https://c1.vgtstatic.com/thumb/1/3/134134-v1/musk-tunnel.jpg)
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![Kaperskar Tunnel](https://c1.vgtstatic.com/thumb/1/3/134291-v1/kaperskar-tunnel.jpg)
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![U.S. 191 rail underpass](https://c1.vgtstatic.com/thumb/1/0/102669-v1/u-s-191-rail-underpass.jpg)
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![Skrøyvstad Tunnel](https://c1.vgtstatic.com/thumb/1/3/134582-v1/skr-yvstad-tunnel.jpg)
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![Tunnel on the Tokai-Hokuriku Expressway](https://c1.vgtstatic.com/thumb/1/3/134762-v1/tunnel-on-the-tokai-hokuriku-expressway.jpg)
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![Upton Chamber](https://c1.vgtstatic.com/thumb/2/5/250743-v1/upton-chamber.jpg)
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![Dartford Crossing](https://c1.vgtstatic.com/thumb/1/3/134373-v1/dartford-crossing.jpg)
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![Randolph Collier Tunnel](https://c1.vgtstatic.com/thumb/1/3/134517-v1/randolph-collier-tunnel.jpg)
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![Klokkarhaug Tunnel](https://c1.vgtstatic.com/thumb/1/3/134691-v1/klokkarhaug-tunnel.jpg)
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![Beat Navy Tunnel](https://c1.vgtstatic.com/thumb/2/0/200141-v1/beat-navy-tunnel.jpg)
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![Mount Baker Tunnel](https://c1.vgtstatic.com/thumb/1/3/134162-v1/mount-baker-tunnel.jpg)
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![Vista Ridge Tunnels](https://c1.vgtstatic.com/thumb/1/3/134320-v1/vista-ridge-tunnels.jpg)
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![Eiavatn Tunnel](https://c1.vgtstatic.com/thumb/1/3/134464-v1/eiavatn-tunnel.jpg)
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