SUMMARY
The roads in Khorasan Province have been the center of attention for several communities and dynasties throughout the time, outlining the economic and political significance of these pathways. During the Safavid dynasty and with the development of roads all over the country, the Safavid kings paid special attentions to this area because of the pilgrimage significance of Imam Reza P.B.H and as a result, numerous caravanserais and mosques were erected on the roads by the kings and people with spiritual incentives. Historical documents and accounts indicate that Bajistan area has been a significant geographical point and historians believe that it used to be the main route for old caravanserais of the southern Khorasan and Ghahestan region. During the Saffavid and Ghajar, the major routes of Mashhad-Kerman and Yazd- Tabas passed this region and merge near Torbat Heydariah and finally arrive at Mashhad. Thus, given the specific topography of the region and its significance for transportation, several caravanserais were built or renovated, most of which have been mentioned generously in historical accounts.The aim of this paper is to evaluate the architectural and structural features of these caravanserais in Bajistan region in order to identify the discrepancies and shared properties of these places during the two dynasties. (Saffavid and Ghajar)The research approach applied here is empirical, historical and analytical. Therefore, an initial study has been carried out using historical literature e.g. travel journals and itineraries from the past, to form an understanding of the popular routes in the area. Then, topographic means have been utilized to locate and register the sights followed by an empirical analysis of the data related to the accommodations which were later documented. The authors then began the process of evaluation in terms of architecture and construction.