Camp Century was built to store nukes beneath Greenland's ice. See photos of the underground, "Star Wars"-like site.

Mitch Kelly, 34, ventured below Argyle Street in the city centre, where he stumbled upon a series of eerie, bricked-up ...

Cincinnati's subway debate is stuck in the past while other cities move forward. It's time our leaders invest in the future.

The dusty walk simply peters out into the mountainside. Nicknamed the Tunnels to Nowhere — and located near another unrelated abandoned infrastructure project, the Bridge to Nowhere — the ...

Abandoned hospitals, tunnels and castles are fast turning into top destinations for those in search of unusual adventures. One such place can be found in a small European capital. In Tallinn ...

Get ready to switch off your flashlight and immerse yourself in the dark for an exhilarating 6k walk in long tunnel complete ...

Last fall when Cincinnati asked for ideas for what to do with its empty, 2.2-mile abandoned subway tunnel system, many Enquirer readers and social media commenters had the same response ...

The site was abandoned and much of the station has now disappeared. Hidden and Forgotten took a tour of the site - capturing the tunnel and what's left of the station. They said: "Today ...

An urban explorer found himself under busy Argyle Street in tunnels abandoned for decades. Mitch Kelly, 34, discovered the tunnels beneath the city centre streets, which he believes were once used in ...