The museum was established in 1930 starting from earlier collections and the collection developed by the Museum Society in Miercurea Ciuc and was institutionalized in 1949. In 1970 it moved to Mikó fortress, a historic monument. It comprises history and archaeology items: the Dacian silver treasure found at Sâncrăieni-Ciuc; ethnography items: costumes, fabrics, weavings, pottery, fine art pieces, mediaeval sculptures and paintings, drawings and watercolours by the painter Márton Ferenc; a library (16,341 volumes). In 1972 an open air department was established, on the ground behind Mikó fortress. Currently the open air department includes six homesteads (from Ciucs&...#226;ngiorgiu, Cozmeni, Plăieşii de Sus, Joseni, Sânsimion and Corund), a well, a grain barn, 16 Szekler wooden gates and a gate fragment.