Porta Capena

According to an inscription Emperor Augustus dedicated the obelisk to the sun in the 11th year of his consulate (10BC), after he had annexed Egypt to Rome. The obelisk is 24 m high. It was erected in Heliopolis in Egypt and was dedicated to Pharao Sethos I (1313-1292 BC) and Pharoa Ramses II (1292-1275 BC). Augustus brought the obelisk to the Circus Maximus, where it was rediscovered in 1587, broken into three pieces and was relocated to Piazze del Popolo on the orders of Pope Sixtus V in 1589.

They are posted at entrances to the Vatican City to provide security and protect the Pope. They wear very colourful clothing, similar to the uniforms worn by Renaissance-era soldiers. The Pontifical Swiss Guards is also the smallest and oldest standing army in the world, founded in 1506 by Pope Julius II. The origins of the Swiss guards, however, go back much further as the popes had regularly imported Swiss mercenaries during the 1400s.

Built in the 17th century to a design based on an architectural sketch by Michelangelo. Highlights include the ancient Colossus of Constantine statue (the Colosseum was probably named for another giant statue, the Colossus of Nero which stood near the Flavian Amphitheatre as the Colosseum was originally known), The Dying Gaul, a magnificent marble sculpture that copies a bronze Greek original of the 3rd century BC and the Capitoline Venus. It also contains the remarkable original gilt bronze equestrian statue of emperor Marcus Aurelius (the one in the piazza is a replica).

Simple and elegant lines make up this building, whose construction began in 1480 for Count Girolamo Riario, nephew of Papa Sisto IV, and was taken up by architect Martino Longhi for the new owner, Cardinal Marco Sittico Altemps. Today it houses one of the branches of the National Museum of Rome, showcasing ancient and Renaissance sculptures, and the results of the 16th/17th-century fashion for 'completing' ancient sculptures missing heads or arms.

Rome's museum of contemporary art, housed in a former industrial complex. Rotating exhibitions, each one usually lasting about 4 months. The MACRO Testaccio exhibition space is located in Aventino-Testaccio.

Minor basilica in 17th-century baroque style with good art inside. In a smaller Italian city, this might be a prime attraction, but in Rome, with its abundance of great churches, this is merely a pleasant church of secondary interest to visit if you are in the area.

It was constructed to hold relics of the Passion of Jesus. They include two thorns of his crown, part of a nail and three small wooden pieces of the Cross. The authenticity of these relics is much disputed, however.

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).

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

Completed in 1762 to a design by Nicola Salvi, this spectacular Baroque fountain features a mythological sculptural composition of Neptune, god of the sea, flanked by two Tritons: one Triton labours to control a violent sea-horse, the other controls a pacified creature, both symbolising the dual nature of the world's oceans. The location of the Trevi fountain marks the terminus of the ancient Aqua Virgo aqueduct, completed in 19 BCE in order to supply the Baths of Agrippa, and is so named on account of its position at the junction of three roads (tre vie). The legend says that one who throws a coin in the fountain shall one day return to Rome. The coins in the fountain are regularly collected to finance charities. The fountain has been made even more famous by the 1954 film, Three Coins in the Fountain, and by a famous scene in Federico Fellini's film La Dolce Vita. According to popular superstition and custom, throwing coins with one's right hand over one's left shoulder into the Trevi Fountain is a practice endowed with good luck. Throwing one coin ensures that the thrower will return to Rome; throwing two coins will ensure that the thrower will fall in love with a beautiful Roman girl (or handsome boy); throwing three coins, finally, ensures that the thrower will marry that girl or boy in Rome itself. The fountain is one of Rome's most famous attractions, but the square isn't exactly as large as St. Peter's, therefore it might be packed with crowds almost like at a rock festival. For this reason it's reportedly also a pickpocket hotspot, so do watch your pockets and bags here!

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.

On the other side of the Via dei Fori Imperiali to the Roman Forum. Well-preserved market area that doubled as a way of stopping the Quirinal Hill from collapsing. Below in the Forum is Trajan's Column, built in 113 with reliefs depicting the Emperor Trajan's vistories in battle.

This is one of the two main Jesuit churches in Rome, the other being the nearby Sant'Ignazio. The interior is Baroque art on steroids. Simply astounding.

This church, which was commissioned by Ferdinand and Isabella of Spain, marks the point where, according to tradition, St. Peter was crucified. Particularly interesting for Irish visitors as it contains the graves of three Gaelic Chiefs who fled Ireland in 1607.

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.

A museum devoted to pasta, Italy's premier gift to world cuisine.