Rome Christmas Day Walking Tour. If you’re in Rome on Christmas Day, work off all those holiday treats with an afternoon walking tour of the city. With a knowledgeable guide who provides Christmas-themed narration, you’ll explore the Eternal City all decked out for the holiday. See the Pantheon, the Spanish Steps, Piazza Navona (and its Christmas Market) and Trevi Fountain, plus stop at a local café for hot chocolate or Italian coffee. End in Vatican City at St Peter’s Square to see the Nativity and Christmas tree. Book and Save 10% Off Rome Christmas Day Walking Tour.