Once only indicated through a sketch by Leonardo da Vinci from around 1495, concealed passageways have been discovered ...

Beneath Sforza Castle in Milan, researchers have discovered a series of secret tunnels—passageways once sketched by the Renaissance artist and scientist Leonardo da Vinci and traversed by a ...

Researchers may have found the hidden tunnels beneath a castle in Milan that Leonardo da Vinci sketched in 1495.

An curved arrow pointing right. Steve Humble dreamed of filling his giant house with secret passageways, but when he looked for a company to build them, he couldn't find one. So he started a ...

Demonstrators across the state have previously walked onto streets with signs and chants as a way to bring attention to many ...