After that introduction to some of the piazzas in Milan, here are some of my other favorites: Piazza Cordusio Surrounded by beautiful bank buildings, this oval-shaped piazza in the heart of Milan is almost always teeming with activity. Sometimes, I pause here, watch the trams go by, peer at the Castello Sforzesco in the distance and then take a short walk along the lively pedestrian street, Via dei Mercanti, that leads to the Duomo.