Catania is the second-largest municipality in Sicily, after Palermo, both by area and by population. Despite its reputation as the second city of the island, Catania is the largest Sicilian conurbation, and among the largest in Italy. It has important road and rail transport infrastructures, and hosts the main airport in Sicily. The city is located on Sicily's east coast, facing the Ionian Sea at the base of the active volcano Mount Etna.