Emilia-Romagna · Bologna
Castel San Pietro Terme
A 75-meter thermal town east of Bologna, its sulphurous waters in use since 1137.
Known for
THERMAL WATERS
Sulphurous and salt-bromine-iodide springs documented since 1137, with a working spa complex still drawing the same waters in the centro storico.
THE CASSERO
1200-built gateway into the medieval castrum walls, the symbol of the town, now serving as the civic theater.
CITTASLOW
Castel San Pietro joined the international Cittaslow network in 2005, the first Bolognese commune to do so.
PROTECTED PRODUCTS
The commune lies inside the Romagna Albana DOCG, Formaggio di Fossa di Sogliano DOP and Asparago verde di Altedo IGP production zones.
When to visit
Best · All year
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
- Best
- Hot or crowded
- Quiet
- Mostly closed
The festa: Madonna del Rosario, 7 October
Why come
The town sits on the Sillaro river, which marks the historic border between Emilia and Romagna, twenty kilometers east of Bologna on the Via Emilia. It was founded as a Bolognese castrum in 1200, and the walled core still follows that original plan, with the river bridge on one edge and the road toward Imola leading out past the walls to the pilgrimage shrine beyond. Castel San Pietro also joined the Città dell'Olio network for its hillside olive cultivation, a rural counterpart to the spa and civic life inside the walls.
The Conservatorio Santa Caterina, founded in 1741, is one of the older female educational institutions still active in the region, sitting inside the same historic core as the gateway and the town hall. The town reads as two things held together: a walled medieval seat on a border river, and a spa destination whose waters predate the walls by decades. Both draw on what was already there long before either was built up for visitors.
The Sunday letter
We haven’t written Castel San Pietro Terme’s letter yet.
One town every Sunday, with the photo, the food, the festa. Be there when this one comes up. Free, by Peter & Sophia from Pietrasanta.


What to see
Cassero
The gateway stands at the southern edge of the old walls, its stone face marking what was once the main entry into the castrum. Inside, the civic theater now occupies the space, so the structure that once controlled access to the town now hosts its audiences.
Terme di Castel San Pietro
The complex draws on sulphurous, ferruginous and salt-bromine-iodide springs, with the first establishment opened in 1870. The waters run year-round from the same sources used centuries before the modern building existed.
Santuario del Crocifisso del Piratello
Pilgrimage shrine on the Via Emilia toward Imola, built around a fifteenth-century crucifix and decorated by Innocenzo da Imola. It drew pilgrim traffic from across northern Emilia, standing apart from the walled town on the road out toward Romagna.
Palazzo del Municipio
Town hall on Piazza XX Settembre, with the seventeenth-century Torre dell'Orologio and the local civic museum.
Centro storico
Medieval walled core on the Via Emilia, holding the gateway, the Conservatorio Santa Caterina of 1741 and the Sillaro river bridge within a compact perimeter.
The slow-trip planner
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We recommend
Where to eat
Not our picks, but places the guides put their name to: a Michelin star, a Gambero Rosso fork, a Slow Food snail, a Michelin Key for the hotels. Worth a table, a counter, or a night when you pass through.
GastareaBistrot
Gastarea holds one Gambero Rosso table.
Il GrifoneRistorante
A spot in the Michelin Guide, at Il Grifone.
Osteria La CivichellaTrattoria
Osteria La Civichella has one Gambero Rosso prawn to its name.
Living here
- Population 20,737
- Commuter belti
- Pharmacy in town
- High school within a 30-minute drive
- Train station in the comune
- Nearest airport Bologna, 37 min drive
- Market day Monday
- Regional capital Bologna, 39 min drive
Thermal baths in town: Terme di Castel San Pietro, Anusca Palace Wellnes & SPA.
Tags & datadesignations · numbers · sources
Recognised as
The numbers
- Elevation: 75 m
- Population: 20,737
- Surface area: 148.42 km²
These figures were compiled from public directories — ISTAT, OpenStreetMap, Wikidata — and from the official listings of the guides named on this page. Town details change; verify with official sources before you travel.
Close by
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🐌 Cittaslow
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