Castillo de Peñafiel (Racha-Rachel) Monument · Zarza la Mayor, Comarca de Alcántara, Cáceres Castle of Arab origin built in the 9th century in border territory, the most important of the four (along with Benavente, Bernardo and Peña de Fray Domingo) built during the reconquest of Alta Extremadura; it has become a symbol of Zarza la Mayor. siglo IX Photo: Illunis11 (CC BY-SA 4.0) What to see and do in Zarza la Mayor