King's Hollow Tunnel in Ohio offers a creepy hiking experience through an abandoned, timber-lined railroad tunnel.

Sebastian Restrepo is a multimedia specialist at MassLive. The “Forgotten Mass.” photo series represents some of the work he ...

Anytime I have a chance to explore ancient abandoned tunnels I take it. I haven't had a chance to go into Cincinnati's infamous abandoned subway and won't likely soon. The city doesn't let people into ...

An ominous, spiked fence guards abandoned train tunnels tucked away in the hills above Colorado Springs. The fence indicates a closure, with folklore pointing to a dark past of the area. Located in ...

The rest stop, located at Milemarker 172.3 in Waterford, PA, sits around the halfway mark on the perpetually busy road. There ...

Gareth Fuller/PA Wire/AP Photo — -- A series of previously closed-off tunnels used during World War II that run along a part of England's coast have been excavated and reopened. The tunnels, ...

IRBIL, Iraq -- ISIS extremists have reveled in destroying ancient shrines and antiquities, posting videos on social media of their vandalism. In an odd twist, however, they've inadvertently uncovered ...

Cincinnati's abandoned 19th-century beer tunnels, dug by German immigrants for lager brewing, are being mapped by the city. The Brewery District Community Urban Redevelopment Corporation has been ...