Augusta is a town and comune in the province of Syracuse, located on the eastern coast of Sicily. The city is one of the main harbours in Italy, especially for oil refineries (Exxon Mobil and others as part of the complex Augusta-Priolo) which are in its vicinity. The city is situated in the province of Syracuse and faces the Ionian Sea. The old town is an island, made in the 16th century by cutting an isthmus and is connected to the mainland by two bridges. One bridge was built recently (Viaduct Frederick II of Swabia) and the other built when the city was founded and is called the Spanish Gate. Augusta is home to two ports.