The twelfth-century stone bridge over the Bormida is Millesimo's most striking monument. A single span carries the road across the river, with a battlemented tower rising from the middle of the bridge; two pointed archways added in the fourteenth century pass through the base of the tower.
The bridge still carries pedestrians and the occasional car, and is the obvious place for a photograph. Stand on the upstream bank at the right time of day and you get the tower reflected in the slow water.