Once only indicated through a sketch by Leonardo da Vinci from around 1495, concealed passageways have been discovered ...

The second tunnel runs parallel to the first one ... one might say.” The sketch of the passageways underneath the castle most likely depicted some improvements the artist was exploring for ...

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 ...

Looking at your sketch will help you to separate the different bits of your drawing up into frames. You will need a background that shows the furthest away parts of the picture. This needs to fill ...

One particular tunnel links the fortress to the church of Santa Maria delle Grazie, which not only hosts da Vinci's masterpiece "The Last Supper" but also serves as the final resting place for the ...