Ravenna is a city and comune in the Emilia-Romagna region of Italy. The city is inland, but is connected to the Adriatic Sea by a canal. Ravenna once served as the seat of the Western Roman Empire and later the Kingdom of the Ostrogoths and the Exarchate of Ravenna. It is presently the capital of the Province of Ravenna. At 652.89 km² (252.08 sq mi), Ravenna is the second-largest comune in land area in Italy, although it is only a little more than half the size of the largest, Rome.