Ruins of the Norman castle founded under Roger II (c. 1130–1140) and wrecked by the 1693 earthquake, at the top of the old town.
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Chiesa del Collegio
Holds a 1688 canvas by Gaspare Perdichizzi that is the only known visual record of Collesano as it looked before the 1693 earthquake.
Torre di Guardia
A 12th-century tower at the highest point of the medieval town, later used as the bell tower of the Mother Church. The surrounding terrace gives wide views over the Madonie.
Chiesa Madre, San Pietro
The town's principal church (begun in the early 16th century), reached by a monumental staircase attributed to Antonino Spatafora (1602). Inside are frescoes by Giuseppe Salerno, "Zoppo di Gangi", and a notable collection of paintings and sculpture.
Early-16th-century church founded by Susanna Gonzaga, holding a 1623 "Madonna del Rosario" by Giuseppe Salerno.
Museo Vincenzo Florio
Museum dedicated to the Targa Florio, the endurance road race founded by Vincenzo Florio and first run on 6 May 1906 — one of the oldest motor races in the world. Housed in the Municipality Palace, a former Dominican convent. Check opening hours locally.
17th-century Franciscan church known for a 1635 wooden Crucifix by Fra Umile da Petralia.