A top travel destination has uncovered an ancient secret. A little-known network of subterranean passageways hidden beneath Rome’s Capitoline Hill — holding clues to a long-ago chapter of the Eternal ...

A 2,000-year-old tunnel once used by Roman emperors to slip into the Colosseum unseen will open to the public this month, ...

We’ve seen a lot of creative plans from car thieves, but one involving stashing vehicles in underground tunnels is new. That’s exactly what’s going down in Los Angeles County, but a man has exposed ...

Editor's note: The following story was updated with new information. Want to go an adventure — underground? Then add exploring to your summer bucket list. There are so many treasures and wonders the ...

A whistleblower claims a crime ring is using a system of tunnels to hide stolen vehicles within the Whittier Narrows Recreation Area. The whistleblower asserts that the criminals use the tunnels to ...