Aerial view of Castelo de S Jorge Lisbon castle on the hill above colorful traditional houses in urban city center of Lisbon, Portugal

lisbon castle lisbon city lisbon castelo de s. jorge portugal castle on hill town aerial view castle city center lisbon flag houses city aerial tourism tourist destination european portugal flag establishing view cityscape traditional houses europe landscape sea downtown urban architecture travel landmark tourist hills monument destination beautiful street historic historical landmark day old flag flags colorful traditional establisher