We found a secret tunnel that looked sealed and forgotten — but it was still open just enough to crawl through. On the other ...

The Bear Gulch Train Tunnel Fire continued to burn through Wednesday. The U.S. Forest Service reported the long-abandoned ...

A fire continues to burn inside the historic Bear Gulch Railroad Tunnel.

The train tunnel is near the Bear Gulch parking lot. Timbers supporting the tunnel caught fire, but flames won’t be ...

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 ...

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 ...

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, ...