Coptic Cairo is a part of Old Cairo which include structures elements for the three heavenly religious (Jewish ,Christianity and Islam) encompasses the Babylon Fortress, the Coptic Museum, the Hanging Church, the Greek Church of St. George and many other Coptic churches and Amr Ims Alas mosque .It's believed that the Holy Family visited this area and stayed at the site of Saints Sergius and Bacchus Church. Coptic Cairo was a stronghold for Christianity in Egypt until the Islamic era, though most of the current buildings of the churches in Coptic Cairo were built after the Muslim conquest of Egypt.