Close by, on a mountaintop, above sea level, lies strategically (the ruins of) the Moorish castle. It was taken from the Moors, during the Portuguese Reconquista in the year 1165 by king Afonso Henriques with the help of Frank Crusaders. The battlements afford a panorama over Sesimbra, its harbour and the surrounding countryside. In addition to the castle, Sessimbra has two forts dating back to the 17th century; the Fortress of Saint James of Sesimbra in the centre of town and the Fort of São Teodósio da Ponta do Cavalo. The former contains a museum covering Sesimbra's history as a fishing village.