Dolmen de la Pata de Buey Historical milestone · Zarza la Mayor, Comarca de Alcántara, Cáceres Group of Iron Age dolmens linked to Vettone settlements, including the one called "Pata de Buey" (Ox Hoof). The territory also preserves two fortifications of Islamic origin, the castle of Peñafiel (formerly Racha-Rachel) and the castle of Bernardo. Photo: Ángel M. Felicísimo from Mérida, España (CC BY 2.0) What to see and do in Zarza la Mayor