We've all had that childhood dream of pulling a specific book on a library shelf and watching a wall slide open to reveal a hidden lair. While most of us assume that secret rooms are reserved for ...

Add Yahoo as a preferred source to see more of our stories on Google. The Colosseum is a historical site atop many history buff's bucket lists, and a visit just got all the more enticing. For the ...

A hidden corridor inside the Great Pyramid of Giza, sealed for roughly 4,500 years and inaccessible from outside, has forced ...

Explorers went beyond the normal Bristol Caverns tour route in Tennessee to see whether the cave could support a wilder ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Ground scans beneath the medieval fortification of Milan's Sforza ...

Secret passageways, trap doors and hidden rooms were standard in some of your favorite mystery series – like "Scooby-Doo" or Nancy Drew. You probably saw them coming. But in real-life, you'd never ...

In 1460, Francesco Sforza, the duke of Milan, decided he required a royal residence. He seized upon the ruins of a medieval fortress in northern Italy and over the next few years, oversaw its ...

In 2006, when the Las Vegas magician was the long-running headliner at the Monte Carlo hotel, he built himself a nearly 15,000-square-foot fortress in Henderson, Nevada, complete with ramparts, a ...

The secret passage that once served the Roman emperors as a hidden entrance to the arena can now be visited in the Colosseum in Rome. Find out why the underground corridor is called the Commodus ...