The 12th-century fortress hidden by the Benicàssim town hall

The Castillo de Benicàssim sits atop a small mound that was once a strategic high point. Built in the 12th century, it was a mountain-type fortress contemporary to other Islamic coastal defenses. In its original context, it held a clear line of sight to the neighboring Montornés Castle and a coastal watchtower that has since disappeared.

As the town grew, the new town hall was constructed at the base of the mound. Because the building reached nearly the same height as the hill, the castle became almost entirely hidden from view. Parts of the mound were also stripped away to make room for the N-340 road, further isolating the ruins from their original landscape.

For centuries, the fortress changed hands frequently. It was conquered by the Almoravids in 1103 before passing to Christian rule in 1234. It served as a barony for royal notaries, bishops, and various noble families, including the Casalduch family in the late 1500s. They even granted settlement rights to residents of the area during this period.

Today, what remains are the visible fragments of two towers and a stretch of southern wall. You can also find part of a cistern and the ruins of an old church, which transitioned from a Franciscan convent to a barracks. It is a quiet, layered record of the town's evolution.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons