The geographical expansion of the Islamic world from East to West has led to the diversity and breadth of Islamic architecture. After the emergence of Islam and the formation of the first data of Islamic culture and civilization, Islamic architecture was also created in the form of mosques, schools, and tombs. With the formation of the first Islamic governments, the architecture of palaces, castles, and towers and ramparts was also added to Islamic architecture. With the extensive military conquests of Muslims in Iran, Rome, Egypt, Spain, India, and Africa, the ground was prepared for the blending of Islamic culture and art with the conquered regions. At this stage, with the development of Islamic architecture and its combination with new architectural propositions influenced by climatic and local conditions, this art appeared in different forms in every part of the Islamic world. While the geographical expanse of the Islamic world has led to the prosperity and diversity of Islamic architecture in different regions of the Islamic world, today, various researchers have studied the different dimensions of Islamic architecture in the ancient regions of the Islamic world, the nature of this art, and its impact and influence on architecture in other parts of the world. Recognizing these works will reveal a corner of the amazing breadth of architecture in the Islamic world.