World’s Longest Tunnel to Open in Switzerland

Sometimes the things man can achieve are mind-boggling, to say the least. More great content from alk3r.

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World’s longest and deepest Gotthard Base Tunnel, in southern Switzerland, after 17 years, is set to open on June 1.

Gotthard Base Tunnel, a 35.5 miles railway tunnel through the Alps in Switzerland, cost $12 billion and displaces 31 million tons rock.

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