Of course, as in every major city you travel to in Italy, while at the train station get yourself a detailed map with trains and bus routes included. General map and direction skills come in handy. If in a group designate someone for directions and someone for asking for directions, then combine! It may seem pricey but its well worth the information and makes a great keepsake and souvenir.
Pictures Ive included are of the Colosseum, Vatican City, the Pantheon, Plaza of the Popes and the Sistine Chapel. All of which are very near major train stops and walking distances from other major locations.
The one downfall would be if at all possible within your budget DO NOT travel on Sundays. The bus which passes the Colosseum goes by quite a few other locations and is a great second option. Unfortunately, it doesn't run on Sundays and it will hamper to ability get around and add time to your overall travel. This in turn will limit your time at locations you may choose to visit.


