A picture of Mehmed II, commonly known as Mehmed the Conqueror, is projected on Maiden's Tower in the Bosphorus Strait in Istanbul, Friday, May 29, 2020, as fireworks explode over Istanbul, Friday, May 29, 2020, during celebrations to mark the Ottoman conquest of the city, then known as Constantinople in 1453. A Muslim cleric recited the "prayer conquest" from the Quran inside the Hagia Sophia, a UNESCO World Heritage site. (AP Photo/Emrah Gurel)