Renaissance artist and inventor Leonardo da Vinci drew a series of underground tunnels said to be hidden underneath Milan's ...

Leonardo’s frescoes can be seen in the castle’s Sala delle Asse, or “Room of Wooden Boards.” During this time, he also documented secret passages built for military purposes under the ...

Ground-penetrating radar reveals new secrets under Milan’s Sforza Castle (Politecnico di Milano) Now, a study applying advanced ground-penetrating radar technology provides fresh evidence that ...

When you think of the Smithsonian Castle, you might imagine hidden chambers filled with priceless treasures or ancient ...

By the turn of the century, Sforza Castle boasted among its features four ... But rumors had it that the structure also housed numerous secret walkways, unknown to and unseen by most visitors.