Rome - great public transportation in Europe, so you never have to rent a car or struggle with traffic (or unfamiliar road signs). #1 don't-miss location is St Peter's in the Vatican, with the Sistine Chapel & more than a day's worth of art on the walls, the floors, & the ceilings! #2 the Roman Coliseum (what a thrill to walk in the steps of Romans from so many centuries ago!) & the Catacombs below. #3 don't miss spot is the Sunday Flea Market (ridiculously wonderful shopping abounds!). Favorite quirky, out-of-the-way attraction: the Capuchin Catacomb of Bones, where monks since the 1500's have donated their skeletons to create the most bizarre & beautiful displays!