was erected over an ancient crypt of the martyr San Marciano, later destroyed by the Arabs. The main altar is Byzantine. It includes the Catacombs of San Giovanni, featuring a maze of tunnels and passages, with thousands of tombs and several frescoes. San Giuseppe: 18th-century octagonal church, in disrepair Santa Lucia alla Badia: Baroque sanctuary church built after the 1693 earthquake. Santa Maria dei Miracoli: 14th century church. San Martino: 6th-century church, 14th-century facade, 18th-century interiors San Paolo Apostolo: 18th century church. Spirito Santo: 18th-century church. Church of the Jesuit College, a majestic, Baroque building. Other notable buildings Castello Maniace, constructed between 1232 and 1240, is an example of the military architecture of Frederick II's reign. It is a square structure with circular towers at each of the four corners. The most striking feature is the pointed portal, decorated with polychrome marbles. Archaeological Museum with collections including findings from the mid-Bronze Age to 5th century BC. Palazzo Lanza Buccheri (16th century). Palazzo Bellomo (12th century), which contains an art museum that houses Antonello da Messina's Annunciation (1474). Palazzo Montalto (14th century), which conserves the old façade from the 14th century, with a pointed portal. Archbishop's Palace (17th century, modified in the following century). It houses the Alagonian Library, founded in the late 18th century. Palazzo Vermexio: current Town Hall, includes fragments of an Ionic temple of the 5th century BC. Palazzo Francica Nava, with parts of the original 16th century building surviving. Palazzo Beneventano del Bosco, originally built in the Middle Ages but extensively modified between 1779 and 1788. It has a pleasant internal court. Palazzo Migliaccio (15th century), with notable lava inlay decorations. The Senate Palace, housing in the court an 18th-century coach. Castle of Euryalos, built outside the city by Dionysius the Elder and which was one of the most powerful fortresses of ancient times. It had three moats with a series of underground galleries which allowed the defenders to remove the materials the attackers could use to fill them. Mikveh: a bath used for the purpose of ritual immersion in Judaism, built during the Byzantine era. It is situated in the Giudecca: the ancient Jewish Ghetto of Syracuse. Monument to the Italians Fallen in Africa, Siracusa Famous people Archimedes, classical Greek mathematician, physicist and engineer Antiochus of Syracuse, a Greek historian Achaeus of Syracuse, a Greek tragedian Themistogenes, Greek historian. He wrote about the Anabasis and some