In the 360 photo is the Court of the Warriors (Cortile Degli Armigeri) of the Visconti Castle, with some modern sculptures. The Castello Visconti San Vito in Somma Lombardo is a large building enlarged in 15th century by Francesco and Guido Visconti. In the two subsequent centuries it was further improved and it changed his destination in order to became more and more a somptuous villa. It is still today well preserved and accessible with important and beautifully decorated rooms.
The area of current Lombardy was settled at least since the 2nd millennium BC, as shown by the archaeological findings of ceramics, arrows, axes and carved stones... continues on wikipedia