İstanbul, the former Ottoman Capital
Interior of the Aya Sofia (from the Greek “Holy Wisdom”), a Greek Orthodox Christian patriarchal basilica built during the Byzantine Empire in the 6th Century. It was an Imperial mosque from 1453 until 1931. It still displays, on a large round shield, the name of Allah above the Minbar (the pulpit from where the imam delivers the Friday sermon). The name of Muhammad is to its left above the Muezzin mahfili (the raised platform, where the muezzin stands to give responses during the imam’s sermon during Friday services). The other two shield display the names of the first caliphs, Abu Bakr (far right) and his successor Umar (left). It is a museum since 1931, although some people want it to open as a mosque again.