Castelo de São Jorge
Although the castle was constructed by the Moors, the site had previously been fortified by Romans and Visigoths. Just outside the entrance is a statue of Dom Afonso Henriques, whose forces besieged the castle in 1147 and drove the Moors from Lisbon. The ramparts offer city panoramas as far as the towering Ponte 25 de Abril. A residence of the kings of Portugal in the medieval period, the palace now houses a small museum showcasing archaeological finds. From the periscópio (periscope) in the Torre de Ulísses in the keep you can spy on visitors going about their business below. Beyond the keep, traces of pre-Roman and Moorish houses are visible thanks to recent archaeological digs, as well as the remains of a palace founded in the 15th century. The castle's outer walls encompass a small neighborhood (Castelo), the medieval church of Santa Cruz, restaurants, and shops.