Basilica of Saint Paul Outside the Walls

This church was built next to the mausoleum of Santa Costanza in the 7th Century and is on top of catacombs. It is very unusual in that the floor level is at the level of the catacomb floor, and the street entrance is at the level of the second floor gallery. The body of St. Agnes lies in a silver sarcophagus. There are several stories about her death at the age of 13 in 304 AD. One is that the prefect Sempronius wanted her to marry his son, and condemned her to death when she refused. Roman law did not permit the execution of virgins, so he ordered her to be raped but her virginity was miraculously preserved. She was then condemned to be burnt at the stake but the wood would not burn. Another is that she was stripped naked by the Emperor Diocletian because of her refusal to marry but that her hair then grew rapidly to preserve her modesty.

This is a footbridge connecting Castel Sant'Angelo with the other side of the Tiber. It is a Roman bridge completed in 134 AD by Hadrian, to give access to his newly constructed mausoleum. Pilgrims used this bridge to reach St Peter's Basilica, hence it was earlier known as the "bridge of Saint Peter". In the seventh century, the castle and the bridge took on the name Sant'Angelo, when it is said that an angel appeared on the roof of the castle to announce the end of a plague. The statues of ten angels on the bridge reflect its name.

Although started in the 2nd century, San Callisto has had many more recent burials, including 16 popes. The burial arcades are almost 20 km long.

Built in honour of Victor Emmanuel, the first king of a unified Italy, this vast structure may appear to be solid white marble but actually contains many rooms inside. There are two permanent museums, one on Italian Reunification and one on emigration from Italy, as well as other spaces that host rotating exhibitions. A walk through the Flag Room leads to the tomb of the unknown soldier. Good views from half-way up but you can also pay €10 (€2 concessions) and take a lift all the way to the top.

Small and attractive piazza tucked away in a neighborhood near Pantheon.

A truly quiet oasis close to the hustle and bustle of EUR. There are three churches in this complex and the doors are open all day, unlike city churches. The monks produce a range of products such as liqueurs, chocolate and honey, as well as a cure for the illnesses Romans suffer when the Scirocco wind blows in from the Sahara. These are on sale at a shop at the Abbey.

At the southern end of the Piazza, designed by Bernini but the main statue of the Moor was done by Giacomo della Porta and the other statues are 19th-century copies of the originals.

Casal Rotondo is the biggest mausoleum on the Appian Way, at about the sixth mile. It now incorporates a small private villa, originally a farmhouse. It is not known for whom it was built. The wall of fragments next to it, constructed by Luigi Canina, has ruins referring to the Cotta family but this family is now believed to not be associated with the Casal Rotondo.

The remains of the ancient Roman archives, where Cicero and Seneca did research. Visible from the Forum and accessible through the Capitoline Museum.

Early Roman houses dating back to the 1st century, believed to be homes of early Christians. Well-preserved frescoes and a small museum.

Pope Sixtus IV della Rovere (1471-1481) gave order to replace the old Roman bridge by a new one. It was Pope Sixtus IV who also ordered the Sistine Chapel and the Opsedale di Santo Spirito to be built. So he ran out of money. He levied a tax on prostitution in order to gain money for the construction of the Ponte Sisto.

More of an enormous traffic circle than a piazza, but a good central location. The centerpiece is the enormous Vittorio Emanuele Monument (aka the Wedding Cake or the Typewriter) with the Capitoline hill next door. Mussolini used to harangue Romans from the first floor balcony of Palazzo Venezia (see under Museums), to the west of the square.

Permanent collection features paintings and drawings of Rome between the 18th and 20th centuries together with a fascinating black and white photo exhibition of Rome from 1950-80. Also offers rotating exhibitions, usually of the work of photographers.

A large villa and 180-ha park that is a major recreation area for Romans, and a popular spot for joggers. One unusual feature of the grounds is the colony of coypus (swamp beavers) around the lake. Natives of South America these ones are descended from some who wisely escaped from a fur farm. There are also colonies by the Tiber.

This church was built by the Emperor Constantine (272-337) as a mausoleum for his daughters Constantina and Helena. It was part of a much larger cemetery complex, parts of which can still be seen. The mausoleum was consecrated as a church and dedicated to Constantina when she became a saint in 1254. The building is circular with an inner arcade resting on pairs of granite columns. It retains some marvellous mosaics from the 4th Century.

This small museum records the liberation of Rome from German occupation during the Second World War. During the occupation the building was used as a prison. Stair lifts and chair lifts available for wheelchair users (call ahead).

Fantastic Byzantine mosaics and some other interesting artwork. Not to be missed. 30 minutes are sufficient for a relaxed visit.

The Collegio Romano was a college of the Jesuit order. Many popes, cardinals and bishops were educated here. Since 1870 it has been a secular (non-monastic) school. The coat of arms on the doorway is that of Pope Gregory XIII (1572–1585). The tower was erected in 1787 and served as an observatory. Until 1925 all clocks in Rome were set after that of the Collegio Romano.

Completed in 179 BC.