Leonardo da Vinci excelled in the fields of art ... castle is unclear, but the finding “reinforces the influence of this great thinker on the history and architectural development of the Sforza ...

Ground-penetrating radar and laser scanning revealed that the historic passages made famous ... Sforza, built on the castle’s tradition and hired Leonardo da Vinci to create art for the castle.

A dozen secret tunnels have been discovered beneath the Sforza ... artists with decorating the building's walls. Among them was Leonardo da Vinci. Rumors about secret passages located in the ...