survey and Analysis of archaeological Manor ’s castles Bahar county (province Hamadan).

The Manor ’s castles in Bahar County are examples of plains castles that during the later centuries of Islam because of the weakness of the central government and chaos caused by the existing power structure in the country and also to stay and settle local tribal chiefs and their people, were built by local rulers. Natural hills and elevations overlooking the surrounding areas and better defensively has been special attention for building castles in the region, like all castles plains. One of the major features of the manor castles of Bahar County is different use of the tower in the castle building, which overtime have different functions such as residence and scout. The main decorations of castles are in the governorchr('39')s seat, especially in the columns and pillars of the porch and also is evident in acrography design inside the building which is executed with a variety vegetable motif and a spiral motifs. These buildings as local government with secure, have drawn attention in the past. In this study, castles with the aim of survey architectural structures and decorative elements used in them and also analysis of typical characteristics common among them, studied and examined. The cause of formation of these structures and their role in regional security during the Qajar period is the most important issue that needs to be answered in this study. Study approach is "explanatory, analytical and field", has discussed the conditions of this category of buildings.