Archaeologists Followed a Sketch by Leonardo da Vinci. It Led to Secret Tunnels Under an Ancient Castle.
An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...
Live Science8d
Mysterious tunnels sketched by Leonardo da Vinci in 1495 may finally have been discovered — hidden under a castle in Milan
Researchers may have found the hidden tunnels beneath a castle in Milan that Leonardo da Vinci sketched in 1495.