This article bases on a map of city of Çorum which belong to 1892 in Ottoman Archive in İstanbul. This map prepared by captain Ömer bin Osman for the demand of municipal council of Çorum. In this map besides the city plan of Çorum, there are seven more drawings belonging to other architectural buildings in the city. Furthermore the names of streets is being shown in this map. Again in this map it is available to find different architectural buildings as, mosques, mascids, graveyards, tombs, tekkes and zawiyas, medreses, schools, libraries, baths, fountains and bazars. If we compare to all the architectural buildings cited in the map to the present situations, it will understand most of them disappeared. From this point this map very important because of its indication of architectural buildings in the city of Çorum and its position at the late of 19the century