World's longest, deepest rail tunnel opens after almost 20 years of construction
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After nearly two decades of construction, a new 35-mile high-speed rail tunnel is now ready to carry cargo passengers on a route that cuts right through the Swiss Alps. The Gotthard base tunnel snatched the title of world’s longest and deepest tunnel upon its opening, and now connects northern and southern Europe. Swiss officials celebrate the high-speed rail as a major advancement for European transportation. The new tunnel in Switzerland is actually two tunnels, each with a single...