- Campo Marzio
- Rome's 4th rione, running from Piazza del Popolo to Piazza di Spagna, with the Tiber on its western side. The Spanish Steps, 135 of them, climb from the Barcaccia fountain to the church of Trinità dei Monti, and the house where Keats died in 1821 stands at their foot. Sitting on the steps is against city rules, and they are usually crowded all the same.
- Trastevere
- The 13th rione, across the Tiber below the Janiculum hill. Its lanes are narrow and winding and paved in sampietrini, the cobbles laid for carriages, and at night Romans and visitors alike come for its restaurants and bars. Santa Maria in Trastevere, one of the oldest churches in Rome, faces a piazza with a fountain.
- Monti
- Rome's 1st rione, named for the hills it covers: the Esquiline, the Viminal and parts of the Quirinal and the Caelian. In ancient times it held the Suburra, the quarter where the city's poor lived. Between 1924 and 1936 a large part of it was cleared for the Via dei Fori Imperiali, which now runs between the Roman Forum and the imperial forums. In the church of San Pietro in Vincoli, Michelangelo's Moses, carved with horns, is the centrepiece of the tomb of Pope Julius II.
- Testaccio
- The 20th rione, built around Monte Testaccio, a hill made of broken Roman amphorae from the river trade. Via Marmorata is named for the marble that arrived at the old harbour here, and the Pyramid of Cestius and the Protestant Cemetery are inside the rione. It was a working-class quarter for most of its history, and its market moved off the old piazza to Via Luigi Galvani in 2012.
