The world’s longest and deepest undersea road tunnel is being built in Norway, intended to cut travel time between major cities and become part of a ferry-free highway along its western coast.

Driving into an underwater tunnel can catch you off guard. One moment you’re in open daylight, and then the road dips and you ...

A proposed tunnel under the Persian Gulf could set a new world record, being five times the size of the Channel Tunnel. The ...

Workers in China have set a new record by completing the task of building the world's largest-diameter underwater shield tunnel. The two mile section of the underwater shield segments is completed, as ...

Madrid to Casablanca in five hours and change, without stepping foot in an airport. That's the pitch behind renewed efforts to build a rail link between Southern Europe and North Africa — all in time ...

NEW YORK (AP) — An underwater tunnel that passes beneath New York City’s East River was punctured when a construction contractor accidentally drilled a hole through it. Social media video Wednesday ...

It sounds impossible. Truly, a transatlantic train from New York to London sounds too good to be true. At the same time, this age-old idea to build an underwater tunnel would literally alter ...

Spain has begun investigating the possibility of connecting Europe to Africa via an underwater tunnel to Morocco. On Saturday, the Spanish government allocated €1.6 million (roughly $1.7 million) to a ...

NEW YORK — An underwater tunnel that passes beneath New York City’s East River sprung a leak Wednesday after a city contractor mistakenly drilled a hole through it, sending streams of water into the ...