Here just for the day, so I can show David the highlights.
We'll head for the Vatican, then walk back to the train
station via Campo dei Fiore, Piazza Navona, a couple of
churches for their Caravaggios, Pantheon, Trevi Fountain,
Spanish Steps, Campidoglio for a great view of the forum . . .
(with pasta and gelato at my fave places along the way).