Castillo del Águila de Gaucín Monument · Gaucín, Serranía de Ronda, Málaga Fortress at the foot of the Sierra del Hacho, of Arab origin, remodelled in 1839 during the Carlist Wars to house troops and artillery; it was put out of use in 1848 after its powder store exploded. Remodelación: 1839; abandono: 1848 Photo: Mussklprozz (CC BY-SA 3.0) What to see and do in Gaucín