More than 75 drug-smuggling tunnels have been discovered under the U.S.-Mexico border in just the past six years, and one of the more intriguing cases involves 17 Mexican men who claim they were ...

US Border Patrol agents recently discovered and disabled a nearly 3,000-foot-long narcotics smuggling tunnel sitting beneath the US-Mexico border. Agents found the tunnel — which linked Tijuana and ...

Since Nelson County reopened the Blue Ridge Tunnel to the public in November, more than 30,000 visitors have taken the opportunity to walk back in time. A new documentary is giving armchair travelers ...

A thick underground concrete barrier built to block smuggling tunnels along a stretch of the border with Mexico in downtown Nogales, Ariz., has done the trick so far, a Border Patrol spokesman said ...

Gunpowder was first used in 1679, to build an underground section of the Canal du Midi, a canal connecting the Atlantic Ocean and the Mediterranean Sea. The tunnel was 157 meters long. Nitroglycerin ...