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 ...

There’s no shortage of interesting facts about Buckingham Palace. For instance, there are 240 bedrooms, 188 of them for staff. There’s also a personal ATM, movie theater, doctor’s office and, arguably ...

A 16th-century secret passageway built for the ruling family of Florence, Italy, has opened to the public for the first time ...

Florence, Italy (CNN) — It was built as a secret passageway for the elite of Florence to pass undetected, far from the regular citizens. Now, for the first time in history, the Corridoio Vasariano, or ...