Where the Ferla stream joined the river Anapo, there stood a castle which since the twelfth century marked this place. The name Cassaro seems to come precisely from the Arabic qasr, or "castle", but the fortress around which the village rose was demolished by the earthquake that, at the end of the seventeenth century, also leveled the district called “di mezzo” (the middle) the closest to the ancient walls.
The village was rebuilt a bit higher up, and has the orthogonal plant which is characteristic of eighteenth century foundations.

The Church San Pietro, which is the Main Church, whose construction was started in the aftermath of the earthquake of 1693, ended a century later; the building was heavily altered in 1938.
The severe form of the façade, so perfectly symmetrical, sweetens with the balcony with small columns separating the portal of the temple from the bell tower with the classic tympanum, rising in the centre of the façade.

The Church of Sant'Antonio Abate, also built in the eighteenth century, has a beautiful square façade, rising at the top of a spectacular staircase. The portal is framed by an elegant pair of slender columns and at the sides there are two niches containing the statues of St. Anthony and the Madonna with Child. At the top of the façade there's a balcony with three bell openings. Inside, there are a beautiful floor with floral decorations and frescoes by Giuseppe Crestadoro.

The eastern border of the village is marked by the imaginary line that shows us the borders of the Nature Reserve of the Anapo Valley. The reserve is vast and was established to protect the river from which it takes its name, as well as the very important archaeological sites that are to be found along the river and that have contributed to make all the Iblean Valley a part of the World Heritage.
It is quite simple to visit the reserve, especially if you agree the visits with the managing body, the State Forestry Board of the Sicilian Region.
Archaeology buffs should not fail to reach the Ranieri district, just a few steps from the San Antonio district, where recent excavations have revealed a group of ancient tombs, perhaps evidence of a Siculo village.

Sant'Antonio Abbot is celebrated for nearly a week in July. The celebrations end with the classic Nisciuta, that is the colorful welcome to the statue of the saint by all citizens on the 26th at noon.
The village, festively decorated, also houses a number of stands on which traditional objects are exposed, along the entire route of the procession.