The Channel Tunnel linking Folkstone, England and Coquelles, France going beneath the English Channel is a 32-mile-long underwater rail tunnel is a joint venture between two countries, It was recognized as one of the Seven Wonders of the Modern World by the American Society of Civil Engineers

The Channel Tunnel linking Folkstone, England and Coquelles, France going beneath the English Channel is a 32-mile-long underwater rail tunnel is a joint venture between two countries, It was recognized as one of the Seven Wonders of the Modern World by the American Society of Civil Engineers. The train running through the tunnel, carrying passengers and cars, takes only 20 minutes for each trip of 23.5 miles in length. Over 7 million people utilize this service, which goes both ways simultaneously. Because of the complexity of the project, creating the longest underwater and underground railway tunnel and going through the English Channel, and the utility it provides to the people, this tunnel is truly an engineering marvel. Share your thoughts of another Engineering Marvel?