Situated on a rocky spur overlooking the Gela plain and not far from the southern coast of the island, Butera was one of the most important towns in medieval Sicily.
Among the most interesting sites is its 11th-century Arab-Norman castle. Over the centuries, the castle has received various architectural modifications, as can be seen from the keep and the mullioned windows. It is still in an excellent state of preservation after the restoration work carried out in the last decade. Also of interest is the Necropolis of Piano della Fiera, in use until the 6th century B.C. and the Hellenistic phase, whose origins date back to prehistoric times.
The Falconara Castle, the only castle in the province of Caltanissetta overlooking the sea, also stands in the territory of Butera. Dating back to the 15th century, it was enlarged and strengthened over time and kept its watch against pirate raids until the end of the 18th century. Its tower, since ancient times, was the site of falcon breeding: hence it was called 'della Falconara'.