The National Museum of Nan is simultaneously an art history, archaeological and ethnological museum. The exhibitions are arranged to emphasize mainly these aspects. They are separated into two parts. The exhibition rooms on the second floor of thee building feature art history and archaeological data and evidence, The rooms on the ground floor exhibit ethnological data concerning the native people and the minority groups living within the boundaries of Nan Province.             The exhibition rooms on the second floor are divided into two sections. The first is the main hall which used to be the throne hall of family tree of the Feudal Lord, historical photo graphs, art objects, ancient currency, weapons and inscriptions. The second consists of the rooms in the north and south wings including the verandah in the back of the building, forming a total of 6 exhibition rooms. They are used for exhibition art history and archaeological ingormation and fondings remaining from Prehistoric times until the Historical Period, i.e. early settlements in Nan province; the influences of the Lan Na and Sukhothai Art Styles in the development of the Nan Art Styles, etc. The last room exhibit black elephant tusks which have been considered the invaluable treasure of Nan Town since ancient times.             The 6 exhibition rooms on the ground floor are also divided into two sections. The first is the main hall and 2 other rooms in the north wing. They are used for exhibiting the ethnological data concerning the native's way of life, i.e. house design, utensils used in everyday life, cloth weaving and various styles of local cloth products, some local customs, rituals and beliefts, etc. The second is composed of a hall and 2 other rooms in the south wing. They are used for exhibiting the way of life of 5 minority groups : the Tai Lue, the Hmong, the Yao, the Thin and the Mlabri (Tong Luang). Some realistic models and scenes are also on exhibit.