The reason the work is required tells us a lot about why this tunnel is so unique and sheds some light on the difficulty of managing a modern rail network built for Victorian Britain. After ...

FBI operation leaders said the tunnel's discovery via a multi-agency operation would disrupt the drug trade between the US and Mexico via El Paso and Ciudad Juarez ...

An ancient tunnel that was built more than two millennia ago continues to baffle experts still today. The tunnel, known as Halliggye Fogou, is shrouded in mystery. Historians and archaeologists ...

But the surprises and unique sites don't end there. There is one more quirky attraction you must visit: Nada Tunnel. Known as the "Gateway to Red River Gorge," Nada Tunnel is the most intriguing ...

Border Patrol agents uncovered a man-made tunnel connecting Ciudad Juárez to El Paso early Thursday, equipped with lighting, ventilation, and wood bracing, U.S. Customs and Border Protection officials ...