Despite this difference in the forms and degrees of mosques, the general Islamic character remains the common denominator. The mosques in Cairo have common denominators and features with those in Baghdad, Damascus and other Islamic cities. The reason for this is that the starting point is the same and the goals are the same, as written by the first teacher, the Prophet. May God bless him and grant him peace, but we notice in all cases that the construction of mosques has developed rapidly thanks to technological progress, and most of them have moved from simplicity to luxury, grandeur and majesty.