View over the old town from Serra do Pilar Monastery at dusk, Porto, Portugal, Europe

photography colour colour image color color image horizontal horizontal image outdoors outside dusk background people incidental people people in the background travel travel destination travel destinations old town porto portugal portuguese europe european urban scene urban scenes urban city cities building exterior building buildings architecture architectural history historical historic heritage illuminated lit lit up high angle view high angle view over townscape cityscape douro river river water diminishing perspective vanishing point perspective x 2018m10 x printready