The town is a well-preserved medieval burgh with two lines of walls, built over the remains of a small Roman center along the old Via Flaminia. It is especially known for its mineral waters.
The twelfth-century duomo dedicated to the commune's patron, the locally venerated Saint Gemine, whose relics were recovered in 1775, was rebuilt in 1817. Brother Gemine was a monk of Syrian origins who died in 815. The burial urn and original stone are conserved in the sacristy; the saint has been reburied under the high altar. The saint's day is 9 October.