The Channel Tunnel linking Britain with France is one of the seven wonders of the modern world but what did it take to build the longest undersea tunnel ever constructed? We hear from the men and ...

The tunnel built under the English Channel in six years ... the American billionaire—assuming a similar construction pace, the transatlantic channel would be completed in 782 years.

The Parallel Thimble Shoal Tunnel Project at the Chesapeake Bay Bridge-Tunnel in the U.S. state of Virginia reached a ...