Portugal, Porto, Palacio da Bolsa or The Stock Exchange Palace dating from the 19th century, Nations Courtyard mosaic floor of the former trading area, which was inspired by Greco-Roman floors discove...

Portugal, Porto, Palacio da Bolsa or The Stock Exchange Palace dating from the 19th century, the central Nations Courtyard covered by a large metallic, octagonal dome with glass panels, designed by To...

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the River Douro which was opened in 1886 and is seen here from the Ribeira waterfront area with Rabelo boa...

Portugal, Porto, Facades on the heavily touristed Ribeira waterfront with a tram crossing Dom Luis I Bridge or Ponte de Dom Luis I.

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the Rver Douro which was opened in 1886, Rabelo cargo boats on the River Douro in the foreground that were...

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the Rver Douro which was opened in 1886, Rabelo cargo boats on the River Douro in the foreground that were...

Portugal, Porto, Vila Nova de Gaia, The Sandeman sign and logo on the Sandeman Port Building which is a granite building dating from 1811.

Portugal, Porto, Vila Nova de Gaia, The Teleférico de Gaia aerial gondola in motion high above the Sandeman sign and logo on the Sandeman Port Building which is a granite building dating from 1811.

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the Rver Douro which was opened in 1886 and is seen here from the Torre dos Clerigos or Clerigos Tower.

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the River Douro which was opened in 1886 and is seen here from the Ribeira side of the river.

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the Rver Douro which was opened in 1886 and is seen here from the esplanade of the Monastery of Serra do P...

Portugal, Porto, Dom Luis I Bridge or Ponte de Dom Luis I, Double-deck metal arch bridge over the Rver Douro which was opened in 1886 and is seen here from the esplanade of the Monastery of Serra do P...