The open sahn (courtyard) of Al-Muayyad Sheikh Mosque in Historic Cairo, showing the mosque's characteristic Mamluk stone arcades with pointed arches, carved medallion friezes, and crenellated roofline. Two visitors stand in the sunlit courtyard, conveying the mosque's active use as both a place of worship and a heritage site. Built between 1415 and 1422 CE by Sultan Al-Muayyad Sheikh near Bab Zuweila, the mosque is one of the finest surviving examples of Mamluk religious architecture in Cairo.