Lisbon is the oldest city in Portugal.
Lisbon ( [ ˈlɪzbən ] Lisboa , [ liʒˈβoɐ ] ) is the capital and the largest city of Portugal , with a population of 552,700 within its administrative limits in an area of 100.05 km ² . Lisbon is one of the oldest cities in the world , and the oldest in Western Europe , predating other modern European capitals such as London , Paris and Rome by centuries .