Castle of Alcaraz Monument · Alcaraz, Sierra de Alcaraz y Campo de Montiel, Albacete An 11th-century fortress dominating the town and controlling the pass of the Guadalmena valley, one of the strategic strongholds on the frontier between Castile and al-Andalus. Photo: JJ Merelo (CC BY-SA 2.0) What to see and do in Alcaraz