Roma Cristiana

Operated by the Vatican-sponsored Opera Romana Pellegrinaggi, this hop-on-hop-off open bus-tour service runs two lines, both departing from Via della Conciliazione. Line A (San Pietro; 1¾ hours) follows a circular route up to Stazione Termini and back by way of the major churches and sites, including Santa Maria del Popolo, Museo e Galleria Borghese, Santa Maria degli Angeli, Santa Maria Maggiore, San Pietro in Vincoli, SS Cosma e Damiano, Santa Sabina, Santa Maria in Cosmedin, San Marco, the Pantheon and Chiesa Nuova. Line B (San Paolo; 2¼ hours) stops off at 22 sites in Trastevere, Gianicolo, Via Ostiense, Via Appia Antica and San Giovanni before returning to the Vatican. There’s a multilingual commentary and tickets are available online or on board.