أطول نفق قطارات في العالم infographic
Graphic shows route and construction details of tunnel and rail link.
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World’s longest rail tunnel

June 1, 2016 - Switzerland is to officially open the world's longest railway tunnel. Spanning 57km under the Alps, the Gotthard Base Tunnel will allow trains to travel at up to 250km/h, dramatically reducing travel time across Europe.

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PUBLISHED:27/05/2016; STORY: Graphic News
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