We went to the Milano Duomo and climbed on the roof with a great view of the city. Watching the sunset on the white marble plates on the roof was an experience. The Prada collection is worth visiting. We saw Documenta installations from the 70s. After a few days, we took the train to Monterosso in Cinque Terre. We liked it best as it has a beach and is a little less touristy than the other cities. The walks across the hills to the next city were fabulous.