During the Middle Ages, travelers heading to St. Peter’s Basilica often took a route that led them along the Via dei Coronari. This street was a crucial part of the journey, as it provided access to the Tiber River crossing at Ponte St. Angelo. The path itself follows an even older road, the ancient Via Recta, which once stretched from today’s Piazza Colonna to the river.
The name "Via dei Coronari" comes from the street’s historic connection to pilgrims. Vendors used to line the road, selling rosaries—also called “corone”—to the many people making their way to the holy sites. These sellers gave the street its distinctive name, lasting centuries.
In the 15th century, Pope Sixtus IV started a wave of new construction along Via dei Coronari. He encouraged the building of private homes, many of which still stand today. Walking down the street, visitors can see houses that date back to the 15th and 16th centuries, each carrying its own stories and unique architectural details.
One of the more intriguing addresses on the street is house number 156/157. According to local legend, this building was once the home of Fiammetta, who was known as the mistress of Cesare Borgia, a famous figure from Renaissance Rome. The stories connected to these old houses add an extra layer of fascination to the street’s rich history.
Source - https://en.wikipedia.org/wiki/Via_dei_Coronari
In addition to Santa Maria in Cosmedin there is a lot to be seen around this piazza. Opposite the church is the round temple dedicated to Hercules Invictus (the Unconquered Hercules), and not far from that the rectangular Fortuna Virilis, both constructed in the 1st Century. Opposite, to the back of the piazza is the Arch of Argentari and behind that the church of San Giorgio in Velabro, the front of which was repaired after being damaged by a terrorist bomb in July 1993.
Regular shows plus an excellent astronomical museum.
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.
Brand new museum designed to celebrate the art and architecture of the 21st century.
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 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.
This is the island located in the middle of the Tiber River (Il Fiume Tevere) that separates Central Rome and Trastevere. It boasts both a major hospital, called Fatebenefratelli, and a small synagogue that was secretly used in the Second World War when Rome's main synagogue nearby was closed down. It also has a café and gelateria on the Rome side. It is a nice way of getting to and from Trastevere. Be sure to get photos from Ponte Garibaldi as Isola Tiberina truly is beautiful. The island is 270 m long and up to 67 m broad. According to the legend envoys were sent to the temple of Asklepius in Epidauros in Greece in 291BC in order to get relief from an epidemic in Rome. The envoys brought one of the holy snakes back with them. The snake swam to the Tiber Island thus determining the place where a temple for Asklepius was built. The successor of the Asklepius sanctuary is the Church San Bartolomeo which was built by the German Emperor Otto III around the year 1000. The Ponte Rotto is what is left from the ancient Pons Aemilius, the oldest stone bridge over the Tiber erected around 180 BC. The bridge was partly destroyed during a flood in 1557, re-erected by Pope Gregor XIII and finally pulled down in 1598. In 62 BC the Senatorial road construction office replaced the wooden footbridge by the Ponte Fabricio.
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
Pope Nicholas III connected Castel Sant'Angelo to St. Peter's by a covered fortified corridor called the Passetto di Borgo. This proved useful for Pope Clement VII during the Sack of Rome (1527). You can still see much of the Passetto by walking along the Borgo Sant'Angelo, which runs parallel to, and north of, the Via della Conciliazione.
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).
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.
This is a large tomb built by the Roman Emperor Augustus in 28 BC in the form of a stone ring covered by an earth mound. A brick wall, 87 m in diameter, carried an earth mound covered with cypresses. On top of the hill stood a bronze monument of the emperor. The building was 44 meters high. At the beginning of the alley, which led to the tomb were two Egyptian obelisks. On both sides of the doorway bronze plates describe the "Res gestae", the deeds of the emperor. The urns of Augustus, Marcellus, Octavia, Agrippa, Drusus and other members of the Julian Claudian dynasty were revered here. In the Middles Ages the building served as citadel of the Colonna family. It was destroyed by Pope Gregor IX in 1241. The body of Cola di Rienzo. a popular leader of the people in the mid-14th century, was burnt in this monument. The Mausoleo di Augusto is not open to the public, and is fenced off.
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.
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.