In this research paper, two mosques found in the Fatimid era will be analyzed in terms of their design methodology and strategies, as well as their architectural elements and materials. Each element is analyzed with clear images that are provided with explanations about it. The third mosque is a modern mosque which follows some of the characteristics of the two previous mosques and will be analyzed in terms of its architectural techniques and elements along with its architectural drawings as well. Lastly, these three mosques will have a comparative analysis showing the similarities and differences among them in terms of their design and features