Dom Luis I Bridge and Douro River at dusk, Porto, Portugal, Europe

travel destination photography horizontal colour image europe clear sky blue dusk building exterior bridge architecture bright light illuminated portugal portuguese culture river water reflection porto douro river national landmark old the past history dom luis i bridge arch metal 19th century lens flare long exposure light trail pavement low angle view connection places of interest incidental people outdoors colour color image color outdoor outside tourist destination travel architectural low angle from below looking up background people people in the background historical historic heritage cultural culture reflecting reflected pavements sidewalk sidewalks arches arched typically portuguese traditional culture tradition traditional traditionally portuguese sundown twilight european