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 ...

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 ...

CINCINNATI — The City of Cincinnati is asking for ideas on how to repurpose an abandoned, unfinished subway tunnel beneath the city's streets, according to documents filed by city council. The council ...

What if Cincinnati's old subway tunnels became an underground food hall and art market? Or canals for kayaking? Or speakeasy spots? The city asked for ideas on what to do with the unused subway ...

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

Cincinnati's abandoned subway tunnel, which stretches two miles through Over-the-Rhine and northward, could be reimagined for another use after the city issued an informational request in late ...

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 ...

CINCINNATI — The City of Cincinnati is asking for ideas on how to repurpose an abandoned, unfinished subway tunnel beneath the city’s streets, according to documents filed by city council. The council ...

NEW ORLEANS (WGNO) — Since Hurricane Katrina, Charity Hospital in Downtown New Orleans has been abandoned. One local urban explorer recently went inside to discover more about the underground tunnels.