Ponte Dom Luis I Bridge, UNESCO World Heritage Site, Douro River, Porto (Oporto), Portugal, Europe

travel destination photography horizontal colour image europe portugal portuguese culture outdoors day city building exterior architecture clear sky blue porto oporto unesco world heritage site unesco douro river river ponte dom luis i bridge national landmark bridge arch arch bridge elevated view large group of people men women side view full length old the past history 19th century colour color image color outside tourist destination travel architectural landmark place of interest group historical historic heritage cultural culture unesco world heritage sites world heritage site world heritage sites arches arched cities typically portuguese traditional culture tradition traditional traditionally portuguese european x 2018m2 x printready