Metropolitan cities of Italy

The 15 metropolitan cities of Italy (Italian: città metropolitane d'Italia) are administrative divisions of Italy, operative since 2015, which are a special type of province. The metropolitan city, as defined by law, includes a large core city and the surrounding suburbs and countryside closely related to it by economic activities and essential public services, as well as to cultural relations and to territorial features.

Source: Wikipedia — Metropolitan cities of Italy (CC BY-SA 4.0)