From the Aventine hill there is a nice park with a spectacular view of Rome which everyone should see. Then just down the street, from the private gardens of the Knights of Malta, there is the same view. This is the Roman skline as seen by the knights as they exit their Rome chapel on the Aventine.
On the horizon is the Vatican Basilica. In the foreground, down the hill, is the Tiber River. Notice the current restoration of the palace along the river: on the left we see the beauty of the new skim coat while on the right we see the drab old ocher (ugly ore of iron).