From the opulence of the Vatican to imagined opulence of Ancient Rome. It's hard to imagine constructing the Colosseum, especially without cranes. The interior must have been impressive especially when filled with spectators watching what ever games were occurring.
Approaching the Colosseum.
From there I explored the posh residential district of the Palatine. This was where the emperors and high officials lived.
Spent my first full day at thenVatican. The place is amazing. I think they most of the art of the world. The lines are long, but move fairly quickly. One can join a tour to decrease the wait, but I really wanted to see it at my own pace.