Imagine a city that was a centre of the Christian Orthodox faith for 1000 years, which then became a centre of the Islamic Caliphate for 400 years. Sultan Selim I conquered Mamluk Egypt in 1517 and claimed a title of the Caliph. Then, try to imagine a Christian Orthodox church with some of the finest late Byzantine mosaics and frescoes that remained untouched by the Ottomans despite the fact that it became ...