Duomo di San Cassiano
Comacchio, Italy · built 1659
Comacchio Cathedral (Duomo di Comacchio, Cattedrale di San Cassiano), also the Basilica of San Cassiano, is a Baroque Roman Catholic cathedral and minor basilica dedicated to Saint Cassian of Imola (San Cassiano) in the city of Comacchio, in the province of Ferrara, Emilia-Romagna, Italy. Formerly the seat of the bishops of Comacchio, it has been since 1986 a co-cathedral in the Archdiocese of Ferrara-Comacchio.
Cathedral data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).