After two years of dreaming, designing, and doing, [Andrey Rudenko] has finally finished 3D printing his concrete ... tricks used to build the castle. His next project, a full-scale livable ...

Since first breaking the ground in 1997 the workforce have used the tools and techniques of the 13th century to unravel the mysteries of medieval ... projects we have embarked on in the Castle ...

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 widower ...