© All Rights Reserved Porto's famous two storey Dom Luis bridge over the River Douro to Vila Nova de Gaia. On the hilltop behind is the Monastery of Serra do Pilar.Related images Street between Ribeira and Sé in Porto Igreja de Sao Francisco - Porto Palace Pinto Leite - Porto Houses in the Ribeira - Porto Porto Tram - Drivers View Porto - Cais da Ribeira