Castle Beja old defensive tower aerial view circling Baixo Alentejo whitewashed red tiled rooftops, Portugal cityscape

castle beja old defensive aerial view tower circling baixo alentejo whitewashed red tiled rooftops portugal cityscape walls scenic medieval fortification ancient town historic city landscape stone fortress keep heritage wall city portuguese mediaeval castelo historical building historical cathedral monument day architecture alentejo sunny tourist vacation travel region battlement scenery viewpoint countryside buildings houses