Acireale is a coastal city and comune in the north-east of the Metropolitan City of Catania, Sicily, southern Italy, at the foot of Mount Etna, on the coast facing the Ionian Sea. It is home to numerous churches, including the Neo-Gothic St. Pietro's Basilica, St. Sebastiano's Basilica in the Sicilian Baroque style, and the 17th century Acireale Cathedral, and a seminary, for the training of priests.