The roof
Another thing not to miss is the cathedral roof. A 200 stepped staircase or an elevator in the north side of the cathedral can take visitors up there. It provides a great view over old Milan and on a clear day, one can even see the all the way to the Alps.
In addition, visitors to the roof can study the many spires and sculptures which covers the place. One can also get a closer look at the massive golden statue, depicting the Virgin Mary, that crowns the 109 meters tall main spire.