Castelo de Sortelha
Above the village of Sortelha are the ruins of a small yet imposing castle. The present configuration dates back mainly to a late-12th-century reconstruction, done on Moorish foundations; further alterations were made in the 16th century. Wear sturdy shoes so that you can walk along the walls, taking in views of Spain to the east and the Serra da Estrela mountains to the west. The three holes in the balcony projecting over the main entrance were used to pour boiling pitch on intruders.