If you are in Rome in the summer and wish to tour the Vatican - doing a night tour is something I would highly recommend. Rome can be really crowded and pretty warm! Touring the Vatican in the evening cuts down on both of these.
This sculpture is called Sfera con Sfera or Sphere within a Sphere. There are a series of them located around the world. One is also at the Christian Theological Seminary in Indy - right down the road from us. I would love run over there and take a picture of that one!
Just down under the canopies is where we had our pizza that night!
Vatican City is located near the center of Rome - from here we could see over toward the Forums - the Vittoriano is especially easy to see.