New in Switzerland: World’s longest train tunnel

The world’s longest train tunnel, the Gotthard Base Tunnel (GBT), will open next week in Switzerland after 17 years of construction. The 35.4-mile GBT is also considered the world’s “deepest tunnel” since it runs 7,500 feet below parts of the Swiss and Italian Alps. The GBT will allow travelers to reach Zurich from Milan in just […]

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