Castelo de Sao Jorge

A sightseeing favourite, Lisbon's castle is the most ubiquitous of the capital's tourist attractions and is a "must see" on any visitor itinerary. The 1755 earthquake destroyed much of the original structure and what you see today is the result of careful renovation. However, while not strictly authentic the castle remains a compelling draw. The heavy-set outer ramparts surround the picturesque Santa Cruz district and the inner walls enclose gardens and archaeological excavations, which have revealed evidence of Roman and Moorish presence. It's possible to walk the entire length of the sturdy battlements and climb the lookout towers, one of which, Torre de Ulisses, has a camera obscura that projects views of the city onto the inside walls of the tower. To take the best photographs, head for the Observation Terrace: the panorama is the finest in Lisbon.