Souvenirs for sale at Cais Ribeira overlooking the Dom Luis I bridge in Porto, UNESCO World Heritage Site, Portugal, Europe

travel destination photography vertical color image colour image europe unesco unesco world heritage site outdoors day architecture bridge souvenirs tourism cais ribeira dom luis i bridge porto portugal built structure portuguese culture retail market stall national landmark low angle view rear view full length men women tourist leisure lifestyle large group of people sitting standing river douro river colour image colour color image color outdoor outside tourist destination travel architectural low angle from below looking up landmark place of interest group unesco world heritage site unesco world heritage sites unesco world heritage site world heritage sites typically portuguese portuguese culture traditional culture tradition traditional traditionally portuguese portugal portuguese europe european tourists holiday maker holiday makers on holiday on vacation