Aniñón is set in a privileged location, in the Sierra de la Virgen foothills, where the Ribota Valley starts to rise in altitude, facing the Armantes Mountains. This landscape of mountains and valleys rich in raw materials was the perfect place for Mudejar architecture to flourish, with raw materials nearby and skilled artisans living there. The best example of this can be found in the highest part of the town. Built on the ruins of an ancient castle is the Virgen del Castillo church, the façade of which boasts one of the most impressive Mudejar exteriors in Aragon. Discovering the extraordinary wealth of these Muslim decorative features is a wonderful experience.
The Virgen del Castillo church was originally a Gothic-Mudejar monument from the 14th century, which underwent extensive renovations in the 16th century when the church was expanded and the gables and top part of the tower were built. In the 17th and 18th centuries, several Baroque chapels were added: the chapel of the Santísimo Misterio de Aniñón, located along the south wall, opposite the main entrance to the church, and the chapel of Nuestra Señora del Rosario, where the church entrance was originally located, before being moved to the south façade. From 1985 to 2005, restoration work was done in several phases, encompassing the entire building.
Leaving town along the old road to Calatayud, another point of interest in Aniñón is the village chapel arch, consisting of a lancet arch on which a two-storey vernacular structure stands.
Of particular note is the irregular layout of the town, featuring numerous mansions built in the vernacular style with two- and three-storey white façades. The Museo del Aceite (Oil Museum), which explains the process of making this liquid gold with an original mill, and the Cooperativa Niño Jesús, offering the best products from the land around Aniñón, are worth a visit.