The churches are quite far apart, so you need to travel by public transport to reach them.
To visit the sites mentioned it takes about 4 or 5 hours, depends on the time you decide to stop in the basilicas.
This itinerary takes you to the discovery of the Papal Basilicas of Rome, also called Patriarchal. These churches are part of “Basilicae Maiores” together with the Basilica of San Francesco in Assisi, the Basilica of Santa Maria degli Angeli in Assisi and the Sanctuary of Our Lady in Pompei.
Our trip starts from the “San Giovanni” subway stop (Line A). Once you exit the subway walk a few steps and you’ll see in front of you the great St John in Lateran’s Basilica. This is the oldest church in the world, home of the papal chair. The church has five aisles, within the niches of the nave we can admire the beautiful statues of the twelve apostles. Among other works found a wooden statue representing St. John the Baptist, the papal altar, on which there is a Gothic canopy and wonderful frescoes representing the Crucifixion and the Madonna. After the basilica you can visit the Cloisters and the Lateran Palace. Continue the journey on foot along Via Merulana, otherwise take the metropolitana, stop at the station Vittorio Emanuele and take Via Carlo Alberto. The second stage is that of the Basilica of Santa Maria Maggiore. The church contains many valuable works of art including mosaic cycle with scenes from the Old and New Testament, dating from the fifth century. Among the works added later found the Chapel of the Nativity of Arnolfo di Cambio and the Sforza Chapel, designed by Michelangelo. We suggest you visit the museum of the basilica, which contains the testimony of environments II and III century, found during excavations. After you have visited the church the papal basilicas itinerary continues with a visit to the Basilica of St paul Outside the Walls. To get there you should get to the Termini Station, take the metro (Line B) and to stop at "Basilica di San Paolo." Once there you will have the opportunity to visit one of the four papal basilicas. Outside the church there is a large statue dedicated to the saint, made of Carrara marble. The church is divided into five naves, separated by four rows of 20 monolithic columns of granite. The floor is marble. The nave and transept are embellished by round with portraits of all the Popes. The fourth papal basilica is St Peter’s Basilica located in Vatican City. We recommend the following route in order to devote more time to St Peter's Basilica, perhaps even visiting the Vatican Museums and the Vatican Grottoes.