Colonna — III Rione of Rome
Colonna is the third historic rione of Rome, occupying the heart of the ancient city between the Corso, the Trevi quarter, and the slopes of the Quirinal Hill. Named after the powerful Colonna family, whose palace still anchors the neighbourhood, it encompasses some of Rome’s most iconic monuments — the Trevi Fountain, the Column of Marcus Aurelius, and the Palazzo Colonna galleries — within a dense urban fabric that has evolved continuously since antiquity.
At a glance
- Type
- Historic administrative district (rione) of Rome
- Period
- Ancient origins; current rione boundaries established under papal administration; name in use since the medieval period
- Style
- Layered historic urban fabric: ancient, medieval, Baroque, and 19th-century elements
- Location
- Central Rome, Lazio, Italy
- Coordinates
- 41.9023° N, 12.4805° E
Overview
Rione III Colonna is one of the twenty-two historic rioni that make up the historic centre of Rome, a UNESCO World Heritage Site. The neighbourhood takes its name and heraldic device — the column — from the Colonna family, a major Roman baronial dynasty whose fortunes shaped the medieval and Renaissance city. Today it is one of Rome’s busiest tourist corridors, centred on the Via del Corso and the dense network of streets connecting the Pantheon area with the Trevi quarter.
History
The area now called Rione Colonna was densely populated in antiquity, straddling the ancient Via Flaminia (today’s Via del Corso) and the zone of the Campus Martius. The Column of Marcus Aurelius, erected in the late 2nd century AD and still standing in Piazza Colonna, gave the neighbourhood its identity even before the Colonna family rose to prominence in the 11th century. Papal reorganisation of Rome’s rioni in the medieval period formalised the boundaries, and successive centuries of aristocratic patronage — fountains, palaces, churches — layered the district with its current architectural character. The construction of the Trevi Fountain in its definitive form (1762) gave Rione Colonna an enduring landmark of European fame.
What you see
The rione’s most celebrated monument is the Trevi Fountain, the largest Baroque fountain in Rome, designed by Nicola Salvi and completed in 1762 against the façade of Palazzo Poli. Piazza Colonna holds the Column of Marcus Aurelius, a 30-metre triumphal column with a helical narrative relief celebrating the emperor’s Danubian campaigns. The Palazzo Colonna, one of Rome’s largest private palaces, contains a picture gallery open to the public on Saturday mornings. Nearby, the Galleria Alberto Sordi (formerly Galleria Colonna) is a 19th-century iron-and-glass arcade that punctuates the Corso.
Cultural significance
Rione Colonna sits at the geographic and symbolic centre of Rome’s historic urban identity, concentrating within a few city blocks a Roman imperial monument, a Baroque masterpiece of hydraulic engineering, and one of the great noble palaces of Italy. Its street pattern substantially preserves the ancient Roman urban grid, making it an important document of continuous urban habitation spanning more than two millennia.
Practical information
- Location
- Central Rome, between Via del Corso, Via del Tritone, and Via delle Muratte
- Key sites
- Trevi Fountain (free, always open); Column of Marcus Aurelius (Piazza Colonna, exterior always visible); Palazzo Colonna Gallery (Sat mornings, ticketed)
- Hours
- Outdoor monuments accessible at all times; individual museums/galleries have own hours
Getting there
Metro line A, stop Spagna or Barberini, both a 10-minute walk. Bus lines 40, 64, and 116 serve Via del Corso and Piazza Colonna directly. The rione is entirely walkable from Piazza Venezia, the Pantheon, or the Spanish Steps.