On October 15, a major milestone was reached on Europe and the World’s longest rail tunnel. The Gotthard Base tunnel under the Swiss Alps will form a high speed rail link between northern and southern […]
The proposed railway tunnel will link Spain and Morroco underneath the Straits of Gibraltar. The depth of the straits ranges from 1,000-ft to nearly 3,000-ft. To put that in perspective, the English Channel is only 150-ft deep, and the Chunnel is another 130-ft below the sea floor. (Photo by chodaboy)
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