Ohio’s hiking trails are beautiful. Showcasing the state’s natural beauty and diverse landscapes, these special routes always renew our appreciation for the Buckeye State. Yet there are a handful of ...

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 ...

An unusual tunnel in Ohio has become an urban playground, drawing in skateboarding daredevils since the 1980s -- one of whom, ...

Good morning! I’ll be on vacation for a week, and a few colleagues will fill in while I’m gone. See you in November. But first, we’re going underneath the streets of Boston to look at 10 unsolved, ...

Beneath cities and landscapes around the world, there are places most people were never meant to see. Old tunnels, shelters, crypts, and mines still exist, and some are open to the public. These sites ...

Deep in Angeles National Forest, about 2 miles from where the nearest paved road ends, a random concrete tunnel is carved into the hillside. A second tunnel follows down the broad path shortly after.

The Colorado Trail’s Segment 8 travels through Camp Hale National Monument north of Leadville, as seen Thursday, Aug. 1, 2024, including a passing near the former US Army’s 10th Mountain Division ...