While typically considered a backyard nuisance since the holes can appear in visible places at times, groundhogs are ...

An important example of the 1960s and ’70s Land Art movement, the artist’s arrangement of four concrete tubes on the floor of ...

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 ...

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.

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.

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 ...

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.