Even better than the excursions planned by Disney...for your daydream. I think about this day often.
You get of the ship in the port near Rome and walk to the nearby train station. After an hour ride, or so, you are in Rome and have ended up having a coffee in the Piazza Navrone. As you set off to find the Trevi Fountain, you pass a horse drawn carriage. How much is that guy for 1/2 the day? A bargain! You, DH and DD are in an open carriage to see the fountain, spainish steps, etc. Then taxi to the Vatican, where you are meeting an art historian you found online. He bypasses all of the lines and it is so beautiful! Done with the Vatican, you have found gelato on the way back to the train on foot. On our own time and it was spectacular!