Sicily (Tyrrhenian) and Messina-Catania-Syracuse (Ionian). Of the narrow-gauge railways the Ferrovia Circumetnea is the only one that still operates, going round Mount Etna. From the major cities of Sicily, there are services to Naples and Rome; this is achieved by the trains being loaded onto ferries which cross to the mainland. In Catania there is an underground railway service (metropolitana di Catania); in Palermo the national railway operator Trenitalia operates a commuter rail (Palermo metropolitan railway service), the Sicilian Capital is also served by 4 AMAT (Comunal Public Transport Operator) tramlines; Messina is served by a tramline. Mainland Sicily has several
Podgorica Capital City can be viewed as the metropolitan area of the city of Podgorica. Population of the municipality was 185.937 in 2011. Podgorica Capital City Podgorica Capital City (Montenegrin: "Glavni grad Podgorica" / Главни град Подгорица) is one of the territorial subdivisions of Montenegro. The seat of municipality is the city of Podgorica. As with other Montenegrin municipalities, the city and the municipality of Podgorica are governed by the same mayor and city assembly, forming one political body. See politics of Podgorica. Municipality of Podgorica is the only Montenegrin municipality to have "city municipality" (Montenegrin Latin: "gradska opština") - Golubovci (until 2018