San Pietro in Montorio

One of the oldest churches in the city. The nave is lined with a mismatched collection of columns taken from ancient Roman buildings. The apse is covered in gold mosaics from the 13th century, arguably the finest mosaics in the city. Impressive mosaics also on the front. According to legend the church was founded in 222, so it would be one of the most ancient churches in the city. Written records mention a church on this place in 337. What is visible today was built in the 12th century, by order of Pope Innocent III. The facade is decorated with mosaics representing the Virgin Mary and ten unidentified figures. Most probably these mosaics are the work of Petro Cavallini who created the mosaics of the lower apse dated 1290 representing scenes from the life of Mary. The mosaics of the upper apse in byzantine style are even older and date from 1140. The columns of the nave originate from the ancient Baths of Caracalla. The facade of Santa Maria in Trastevere is even more impressive at night when it is illuminated.

The Servian Wall was the first wall around Rome, built around the 3rd century BC. This well-preserved section provides a good opportunity to observe the construction methods of that time, particularly the use of tufa rock blocks

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

The museum is dedicated to Napoleon Bonaparte and his family. After Napoleon's death in 1821 the Pope gave permission to his family to settle down in Rome. His sister married Prince Camillo Borghese.

Now invaded by readers of Dan Brown's Angels and Demons, this is an interesting Baroque church containing Bernini's "Ecstasy of St. Teresa". Either side of this chapel are characters in what can best be described as theatre boxes. These are members of the Cornaro family, who paid for Bernini's sculpture. (As of Feb 2015, not visible due to restoration work.)

housed in the baroque palace Corsini where Christina, Queen of Sweden settled down in the last years of her life

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).

A very ancient church named after a saint who was in 1969 removed from the Roman Catholic calendar of saints for the lack of details of her life. But the church retains the name and is well worth visiting for an excellent 4th-century mosaic and attractive decorations on the facade. Visiting hours are short, but if you arrive close to 11:30, try talking to the attendant if you see him, and he might let you visit for a few minutes. The church is small, so 15 minutes should be long enough to see and absorb everything.

The temple of the Emperor Hadrian was consecrated in 145 AD by Emperor Antoninus Pius. The remains of the antique temple were incorporated into a new building that served as the Papal Customs House. It was finished around 1690 and today accommodates the Stock Exchange (Borsa).

The villa was erected by order of Cardinal Ricci di Montepulciano in 1544. It was acquired by Cardinal Fernando di Medici in 1576. Since 1803 it is the French Academy in Rome. The academy was created in 1666 by the French King Louis XIV in order to enable painters to study in Rome. Nicolas Poussin was one of the first students, Ingres was director, and Fragonard and Boucher were students of the French Academy, but also musicians like Berlioz and Debussy studied here. Today the villa hosts occasional concerts and exhibitions. Its gardens can be visited.

The renamed Rome Zoo, one of the oldest in Europe, founded in 1911. On the edge of the Borghese Gardens, a short, well-signposted walk from the Gallery. They try hard, but San Diego this isn't. If you are a regular zoo-goer you will be disappointed.

Constructed around the 1940s as the centrepiece of the EUR, but unused for a long time. It was restored before 2015 when the luxury fashion label Fendi moved in.

This is a treasure-trove of art. There are a couple of paintings by Caravaggio: "The Crucifixion of Saint Peter" and "The Conversion of Saint Paul" (in a dim alcove to the left of the altar, both at right angles to the viewer, with a machine wanting €2 to switch on the lighting) together with a sculpture by Bernini, frescoes by Pinturicchio and mosaics by Raphael. Part of the Dan Brown tour, this church featured in Angels and Demons, although the Vatican did not allow filming inside.

Good collection of Renaissance and Baroque art, including by Velasquez, Titian, Raphael, and Bernini, all owned by the Doria Pamphilj family. Excellent audio guides really bring the paintings to life.

Brand new museum designed to celebrate the art and architecture of the 21st century.

The 4th rebuilding of the meeting place for the Roman Senate, once converted into a church during the Middle Ages, but now restored since the 1930s.

A 5th-century basilica, simply and attractively decorated. The wooden door, of which 18 carved panels of scenes from the Bible survive, is believed to date from the church's construction.

A great little cathedral to visit, lovingly looked after by Irish Dominicans. There is an excavated older church below the medieval church you enter and a Mithraeum (temple to Mithras, whose cult was very popular with Roman soldiers from the 1st to 4th century AD) below that. The only place in Rome to hear the underground river that flows beneath the city.