You can see here the Castello Sforzesco, the old dukes of Milan headquarters. Many artists took part in its construction: Brunelleschi, Bramante, Gadio da Cremona and Leonardo da Vinci. Napoleon ordered its destruction, but thanks god only the inner courtyard was demolished.
Currently some interesting museums are located in the castle: the "Musei dei Castello Sforzesco". In the archeological museum you’ll find Egyptian and Roman works (and some Renaissance too, like Michelangelo’s "Pietà Rondanini"). In the Art Gallery there are some 15th century frescoes. There are also armors, musical instruments and carpets sections.
Behind the Castle there’s a nice park, let’s go there ...