An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...

Now, scientists have uncovered a hidden feature underneath a medieval castle in Milan, Italy, that researchers once could only speculate about based on a sketch of Leonardo’s from around 1495 ...

Draghici is working with Andrey Rudenko, a Minnesota-based engineer who built a 3D concrete printer capable of constructing entire architectural projects. Rudenko’s backyard castle caught ...