Source: Tourism MediaHagia SophiaOnce a church, then a Byzantine cathedral, later a mosque and now a monument, this iconic building is a national treasure.WorldEuropeTurkeyIstanbulHagia Sophia
Source: Tourism MediaChora ChurchOne of the most beautiful surviving Byzantine churches, with interiors laid out in fine mosaics and frescoes, has been converted into the impressive Kariye Museum.WorldEuropeTurkeyIstanbulChora Church