Tips about traveling in Italy?!?!?

My mom, aunt, and I are going to be traveling to Italy as a graduation gift to me. We will be taking a tour through Insight and I would love any tips you have about going on such a tour, off the beaten path type places to see, etc. Tour itinerary can be found at: a href="http://www.insightvacations.com/us/index.php?tour_code=E937" rel="nofollow"http://www.insightvacations.com/us/index…/a