According to a recent YouTube video, a mysterious series of rooms and tunnels were found under actor Gene Hackman's house.

However, perhaps the most famous example of a hidden passageway is what modern architects call a "murphy door," most often ...

A long-rumored network of secret tunnels sketched by Leonardo da Vinci has been uncovered beneath the Sforza Castle in Milan, ...

Now, Creative Home Engineering installs hidden doors, secret rooms ... Steve Humble dreamed of filling his giant house with secret passageways, but when he looked for a company to build them ...

Discovered by accident in 1963, when a resident knocked down a wall in his basement to reveal a hidden passageway, Derinkuyu was soon recognized as an architectural marvel. The city features an ...

3. Hidden Passageways The villa has several hidden passages that were used by Versace and his guests. The most famous connected his dressing room to one of his libraries. Most have been closed up ...

Did you know Mount Rushmore has a hidden passage? Or that more faces were originally planned? Explore the forgotten history of this legendary American landmark. Trump considers moving US troops ...