Beneath cities and landscapes around the world, there are places most people were never meant to see. Old tunnels, shelters, ...

First created during the Cold War, Project Iceworm saw the US plan to store hundreds of ballistic missiles in a system of ...

Urban Air Adventure Park in Glenview offers go-karts, climbing walls, laser tag, trampolines, a warrior course, a zipline, ...

Forty feet underground, the city's once-bustling system of freight tunnels remains. Social media videos show adventurers and ...

"Detailed inspections will need to be carried out to determine the extent of any damage before the tunnel can be safely ...

If full-blown world conflict breaks out, there are a number of places across the globe which would probably be safe.

600 feet below the Hudson Valley, the longest tunnel in the world is helping deliver drinking water to New York City. The 105 ...

Those Italian tunnels — and two weeks traveling — made me think about the tunnel’s meaning — not just on the road but in our ...

The tunnel fully reopened just past 7 p.m. Monday after an initial safety inspection was completed, ensuring the tunnel’s structural integrity. However, WSDOT is not done inspecting for damage.

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries Colorado River water to Southern California.

Large concrete culvert pieces waiting to be set into place for a new pedestrian tunnel under the railroad tracks between Bandemer Park and Barton Nature Area in Ann Arbor, as seen along the Border ...