Blue Mosque (Sultan Ahmet Camii), UNESCO World Heritage Site, Istanbul, Turkey, Europe

travel destination photography horizontal blue mosque sultan ahmet camii istanbul turkey europe building building exterior day architecture nobody mosque religion place of worship islam old history the past national landmark 17th century minaret tower blue sky dome tree sunlight places of interest outdoors colour image colour color image color outside travel destinations travel architectural no one no one landmark landmarks historical historic heritage cultural culture unesco world heritage site unesco world heritage sites unesco world heritage site world heritage sites