All archaeological explorations indicate that the history of iranian architecture goes to the 7th millennium BC. Since then, this art has developed and evolved in relation to various issues, especially religious ones. iranian architecture possesses features that are of special value in comparison with the architecture of other countries of the world; such features as proper design, calculations The exact form of the cover, the technical and scientific issues in the building, the sumptuous porches, the long columns and finally the various decorations, each of which is as simple as representing the glory of iranian architecture buildings. Obviously, iranian architecture history should be preserved; however, using this legacy, iranian architecture can be constructed for the future and hoped that iranian architecture would contribute to the architecture of the day. The existence of valuable iranian architecture buildings is an indication of their construction by powerful cultural artists. iranian architecture buildings indicate that, due to the lack of a university at the time of the traditional architects, these buildings are formed solely through experience. In iranian architecture history, despite its specific features such as the fit and beauty of the doors, walls and porches, the feature that is worthiest of examination is its mathematical and mystical logic. The introversion and tendency of Iranian architects to the courtyards, podiums, pits of gardens, vestibules and pebbles that have surrounded the nests have long since been part of the Iranian logic. We should mention that in iranian architecture history, before the Persepolis was built, hundreds of porches and wooden niches were constructed with wooden and stone columns all over the civilized world of that day, but first we find in Persepolis that the columns are as far apart as possible, although in some Out of the ancient temples outside Iran, like Egypt, the distance between the two pillars is slightly smaller than their diameter. When we talk about iranian architecture history, we should talk about the islamic iranian architecture too. this style of architecture is based on the advent of Islam and its impact on architecture, and its manifestations can be found in mosques, tombs, palaces and forts. Architecture in the Islamic world is one of the greatest manifestations of the emergence of an artistic truth in the physical body. Historically, architecture is the first art to adapt to Islamic concepts, to be welcomed by Muslims. islamic iranian architecture is recognized as one of the most successful architectural methods in the history of world architecture. At a comprehensive look, a valuable and dynamic continuum can be redefined in Islamic monuments, which all of them have become in the same style as Islamic architecture. In this part we will talk about iranian architecture and its special element and we also introduce the most amazing architectural buildings to you around Iran.