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Photo: Berthold Werner, Public domain via Wikimedia Commons
Also known as St Paul Outside the Walls. This is on the outskirts of Rome in an otherwise drab modern neighborhood. The enormous basilica is a faithful reconstruction, finished in 1854, of the ancient basilica which burned down in 1823. Parts of the original interior were rescued from the fire and have been extensively restored. Visiting in the afternoon may avoid the tourist coaches. Don't miss the medieval cloister, which survived the fire.
The Papal Basilica of Saint Paul Outside the Walls is one of Rome's four major papal basilicas, along with the basilicas of Saint John in the Lateran, Saint Peter's, and Saint Mary Major, as well as one of the city's Seven Pilgrim Churches. The basilica is the conventual church of the adjacent Benedictine abbey. It lies within Italian territory, but the Holy See owns the basilica and it is part of the Vatican's extraterritoriality.
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This delightful museum provides an interesting juxtaposition between the buildings and equipment of Rome's first electricity generating plant and the exhibits, which are mainly from excavations of Roman sites. A combined ticket with the museums on the Capitoline Hill provides big reductions.
This church can be an interesting deviation if you are passing through its neighbourhood. It is believed to be the grave of the Saints Ciro and Giovanni, killed during the time of the Emperor Diocletian. The original name was Abba Cyrus and through Appaciro and then Appacero it finally became Pacera, very close to today's Passera. The building is on top of a 3rd century building still visible in the lower floor and in the underground. The main part of the building dates back to the 9th century as do the frescoes on the higher floor. Some of the frescoes have been restored. Downstairs there is a small quadrangular room and the underground, where the remains of the two Saints are supposed to be. There are still visible 3rd century traces of Roman frescoes; in front of the stair you can enjoy a small bird, the Justice, and an athlete while in the vault some eight apex stars. Bus 128,780,781,775 (first stop in Via della Magliana).
A 1st-century tomb surrounded by two farmhouses from the Middle Ages, one of which used to be a cheese store. Rather hidden behind a high wall, the tomb is rarely open to the public. You might be lucky on a Sunday: on the third Sunday of every month there is a guided tour at 11:00.
The Catacombs of Domitilla are considered to be the best preserved of all Roman catacombs. They are the only ones still to contain bones. Domitilla also has a subterranean basilica, much of which was reconstructed in 1870.
This is not the real name of the church on the corner by the main entrance to San Callisto but it is universally known by this name. By legend it is located on the spot where Saint Peter had a vision of the risen Christ while fleeing persecution in Rome. According to the tradition, Peter asked Jesus, Domine, quo vadis? “Lord, where are you going?” The current church is from 1637. Inside is a copy of a stone said to contain the imprints of the feet of Jesus; the original is maintained in San Sebastiano, further along the Appian Way
Porta San Sebastiano is a gate in the amazingly well-preserved Aurelian Walls. Inside and upstairs is a museum dedicated to the construction of the walls and their recent restoration. You can take a walk along the top of the walls. At the museum you can also arrange to visit the Tomb of the Scipios (Sepolcro degli Scipiani) and a nearby Roman Columbarium (tomb for cremated remains), the entrance for which is 200 m back towards Rome along the Via Di Porta San Sebastiano. No wheelchair access.