World’s longest, deepest railroad tunnel opens

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World’s longest, deepest railroad tunnel opens – CBS News

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It took nearly 20 years and $10 billion, but Switzerland this week celebrated the opening of the Gotthard Base Tunnel, now the world’s longest and deepest railroad tube. This 35-and-a-half-mile-long engineering marvel was originally designed to reduce travel time between Zurich and Milan, Italy, by cutting directly under the Swiss Alps. Anthony Mason reports.

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