Three photographs of the waterfront in the northern Portuguese city of Porto, designated a UNESCO World Heritage site in 1996. The photographs also illustrate one of the six bridges linking Porto to Vila Nova de Gaia on the other side of the Rio Douro.

Three photographs of the waterfront in the northern Portuguese city of Porto, designated a UNESCO World Heritage site in 1996. The photographs also illustrate one of the six bridges linking Porto to Vila Nova de Gaia on the other side of the Rio Douro.

Three photographs of the waterfront in the northern Portuguese city of Porto, designated a UNESCO World Heritage site in 1996. The photographs also illustrate one of the six bridges linking Porto to Vila Nova de Gaia on the other side of the Rio Douro.

Photographs of the pelourinho, a carved stone pillory erected in public town or village spaces in Portugal between the 13th and 18th centuries. Originally they were used to handcuff or publicly punish criminals; later, they becme general symbols of justic

Pictures of barcos rebelos, flat-bottomed boats on the Rio Douro, which were used to transport port wine, one of Portgual's best-known exports up to 1926. These boats are moored by Vila Nova de Gaia, Portugal's centre for storing, botting and maturing por

Photos of Porto taken in 2008