Christian Cairo, Cairo
7.Visit the Greek Orthodox church of Mari Girgis (St. George). Built on the ruins of an ancient church, it has a unique circular hall dating to the 13th century AD. http://www.touregypt.net/gstgeorge.htm Correction: The adjacent monastery of St George belongs to the Patriarchate of Alexandria, but is not the seat of the Patriarch of Alexandria. His seat is at Alexandria.
This old cairo is an area where you can visit some old churches and old christian settlement thousands of years ago and here is where history witness some wars. Its all about history....