Haghia Sophia, UNESCO World Heritage Site, Sultanahmet District, Istanbul, Turkey, Europe

haghia sophia unesco unesco world heritage site world heritage site sultanahmet district istanbul turkey europe european colour colour image color color image blue sky horizontal horizontal image outdoors outside day nobody no one no one fountain refreshment refreshing water history historical historic heritage architecture architectural byzantine dome domes domed minaret museum travel travel destination travel destinations tourist destination tourist destinations photography religion religious building arts culture and entertainment church churches basilica building exterior building buildings