Excavations around the Rocca are ongoing, revealing different phases of the city’s history, beginning with its Hellenisation. Its strategic defensive and panoramic position made it a coveted destination in ancient times: it was occupied twice by Syracuse, then fell under the control of the Carthaginians before being liberated by Pyrrhus in 277 BCE. During the First Punic War, it allied itself with the Romans, but rebelled during the Second Punic War. As a result, it lost its status as a ‘free and exempt city’ and became the nerve centre of the slave revolt led by Euno, suffering severe devastation. In 859, the Arabs seized it from the Byzantines and renamed it Qaṣr Yanī – hence its historical name, Castrogiovanni. Reconquered by Roger of Hauteville in 1087, it became a favoured residence of the Swabians and Aragonese, and its status as a state-owned city dates back to Norman times. From the second half of the 16th century onwards, the city, despite its strong rural character, prospered as an agricultural and mining centre due to the exploitation of sulphur and potassium salt deposits. However, it suffered a sharp population decline during the 18th century due to the colonisation of feudal estates and settlement in areas that now form part of the current province.
The eastern peak, which forms part of the ancient Acropolis, is home to the Rocca di Cerere, where a sanctuary dedicated to the chthonic deities that made the town famous in ancient times used to stand. The almost completely isolated calcarenite peak is a massive rock that was extensively worked during the Classical Period and was probably the centre of the sacred temenos dedicated to Demeter and Kore. Visitors can climb the monumental original staircase and enjoy a panoramic view that dominates most of the island.
Today, the top of the turreted city is shared with the imposing royal castle known as Lombardy Castle, where the main road through the historic centre, the ancient Sharia, begins. This opens up to the old quarters, which have been preserved according to an almost unchanged Arab layout featuring narrow streets and enclosed courtyards. Outside the turreted city, the current urban layout encompasses the lower town and the village of Pergusa, which is the hub of the SimGeo eco-museum network.
The hamlet of Pergusa, located on the shores of the lake of the same name in the province of Enna, was founded in the 1930s. This coincided with a major land reclamation project of the marshy areas of the lake basin, where malaria-carrying mosquitoes were endemic, and the construction of the government district in the upper town. Once the area had been reclaimed, the Fascist regime settled families from Enna who had been living in caves or had been forced to move to make way for the construction of Piazza Garibaldi, the government buildings, INCIS and the headquarters of professional associations. The adjacent area was organised in a Fascist style.