The museum developed from the collection of coins, arts, library, weapons, natural sciences, local history and ethnography of the local Reformed Lyceum. The first inventory dates from 1797. It opened to the public in 1913, and turned into a state institution in 1952. Haáz Rezsö was the founder and first manager. The museum buildings were built at the end of the 19th century, as dwelling places. After the nationalization, it has functioned as a school, pioneers' house, dwelling places. It was a museum between 1952 and 1957, as well as from 1968 onwards. The exhibits include archaeological material, coins, local history items, archives (taken over from the State Archives - Harghita... County subsidiary); ethnography items: fabrics, embroidery, lace, wooden and bone artefacts, pottery (jugs, jars), painted furniture. There is also a documentary library, works of contemporary art, memorial objects, natural sciences items.