The Parish church of Sant'Ambrogio is the main historic church of Alassio, with roots going back to at least the 11th century. The campanile — the bell tower — dates from that period and is the most visible element of the medieval town from the beach. The church itself was rebuilt several times over the following centuries, resulting in an unusual combination: a Renaissance façade, a Romanesque-Gothic bell tower, and a Baroque interior with elaborately carved slate details.
The church is dedicated to St Ambrose of Milan, the town's patron saint, whose feast day on 7 December is still marked with local celebrations. Inside, look for the carved slate portal and the 17th-century choir stalls. The church stands in the old town, a few streets back from the Budello pedestrian lane.