The major neighborhoods, streets, squares, and landmarks of Siena
Siena is splayed out like a “Y” along three ridges with deep valleys in between, effectively dividing the city into thirds, called terze. The terze are each drawn out along three main streets following the spines of those ridges.
The southern arm, Terza di San Martino, slopes gently down around Via Banchi di Sotto (and the various other names it picks up along the way).
To the west is Terza di Città (home to the Duomo and Pinacoteca), centered on Via di Città.
Terza di Camollia runs north around Via Banchi di Sopra. These three main streets meet at the north edge of Piazza del Campo, Siena’s gorgeous scallop-shaped central square.
Tip for the footsore: Each terza’s main ridge-top street is relatively flat—for Siena—while off either side medieval alleyways drop precipitously. If you hate climbing hills, the shortest (or at least less strenuous) distance between two points in Siena isn’t a straight line but a curve that follows the three main drags as much as possible.
Siena's western third, centered on Via di Città, home to the Duomo and Pinacoteca
Siena's southern third, sloping gently down around Via Banchi di Sotto (and the various other names it picks up along the way)