The Pantheon and Piazza Navona

Well, today is our last day in Rome and we made it to the Pantheon, not only that, but we went to mass there! It was very nice. After mass, we listened to our podcast about the pantheon, saw the tomb of Raphael and King Victor Emmanuel, and all that other stuff inside the Pantheon. Then we headed to Piazza Navona where we sat down and had drinks, listened to the fountain (Bernini again), and watched the people go by.
We saw a couple of huge columns, one of which I think was Trajan's. I'll look it up to see which one was it was.