Vigevano is very near Milan, less than an hour by train, and is a place that you should visit, it has the most beautiful square in Italy, one of the first models of a renaissance square. Here Leonardo Da Vincilived and worked . There is a small museum in the old mill of Mora Bassa, which you can reach in a half-hour walk though a very nice country setting, and here you can see, in small format, the machines that Da Vinci invented.
The Piazza Ducale in Vigevano, is much like any Spanish square. It is a square shaped elongated rectangle. It is the main attraction of the city, and has been awarded the fifth place among the most beautiful squares in Italy. It was built for Ludovico Sforza between 1492 and 1493, in record time. Ludovico demolished the old palace of the town of Vigevano in order to create space for this beautiful area to be constructed.