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 ...

Millions of tourists visit the most famous monuments in the world every year. Tourists wander through public galleries, take ...

The idea of having a secret storage space or a hidden feature nobody knows about is very attractive for a lot of people. The idea of a secret room behind the bookcase or a hidden storage compartment ...

Visitors to the Colosseum in Rome can now walk through a tunnel that even in Roman times was exclusively reserved for emperors ...

The Colosseum is a historical site atop many history buff's bucket lists, and a visit just got all the more enticing. For the first time in 2,000 years, tourists can walk where the emperor did through ...

Under the floorboards of the U.S. Capitol lie hidden staircases and passageways left over from the iconic building's original construction in the 18th century, a viral video posted by Republican North ...

Hidden rooms and secret passageways might sound like something out of a mystery novel. But some architectural details really can expose secret spaces behind walls or beneath floors. Isfira Jensen, CEO ...

Congratulations, you have found the entrance to the Secret Place, a venue that can be privatized, revealing vaulted rooms that are particularly common in the Latin Quarter. An original concept ...

The “mystical capital of Europe” serves as the backdrop for the author’s latest novel, “The Secret of Secrets.” Here are five spots that fire his imagination. By David Farley Photographs by Lenka ...