Park with Sultan Hassan in the backgroundFrom Al-Azhar Part to the City of the Dead

Two good places to take photos of Cairo are the  viewing platform at the Citadel (looking down to Sultan Hassan Mosque and beyond), and a newer addition - the viewing point located in Al Azhar Park.  You have to climb a lot of steps to get to it, but it is circular allowing you to see in all directions, so it is really something.  Mainly - the Citadel and surrounding area, Islamic Cairo and beyond, Northern Cemetry and Mokattam Hills.

 Citadel from the Park

Both the Citadel and Al-Azhar Park are very special places and should be included in any visit to Cairo.