Castle of Òdena Monument · Òdena, Anoia, Barcelona Òdena Castle rises on a gypsum hill that overlooks the basin of the same name, in the Barcelona municipality of Òdena (Anoia), surrounded by the present-day town. Documented from the year 957, it belonged to the Òdena family until 1287, when it passed to the viscounts of Cardona; it was later sold to the Crown and, in 1347, jurisdiction over the castle fell once again to the Cardona family, in whose lineage it remained until the end of the seigneuries in the 19th century. It is now municipally owned and preserves an albarrana tower, with an eleven-sided polygonal outer plan and circular inner section, 10.28 metres high with walls 244 centimetres thick, along with remains of walls and a pool for rainwater. Photo: Jordiferrer (CC BY-SA 3.0) What to see and do in Òdena