Castelbuono is a town and comune in the Province of Palermo, Sicily. It is especially famous for the castle which its name derives, and around which the city grew up in the 14th century.
- The Castle - The construction of the Castle mixes Arab-Norman features with others typical of the castles built during the Hohenstaufen rule of southern Italy: the cube shape recalls Arabic architecture; the square towers, although incorporated into those of the façade, reflect Norman architectural style, as also the battlements; and the round tower recalls aspects of Frederick II's times architecture.
- Church of Matrice Vecchia - The church of Matrice Vecchia was built in the 15th century on the ruins of a pagan temple. It has a Renaissance portico added in the 16th century, and a central portal in the Catalan-Gothic style.