Archeologists discovered, thanks to modern technology, that ancient sketches by Leonardo depict real tunnels under the Sforza ...

An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to exist. Ground-penetrating radar and laser scanning revealed that the ...

A series of mysterious tunnels first sketched by da Vinci around 1495 have now been discovered beneath the Sforza Castle in Milan. No one knows exactly why these secret passages were built beneath ...

(CNN) — Leonardo da Vinci ... of the castle is unclear, but the finding “reinforces the influence of this great thinker on the history and architectural development of the Sforza Castle ...