Chiang Mai National Museum is the Main regional museum of the north. The fine Arts Department has assigned this museum to be the centre of education and preservation of art and culture of Chiang Mai and upper northern Thailand, the old Lan Na Kingdom.          Their Majesties the King and Queen graciously presided over the opening of the museum on 6 February 1973. The museum is designed as a Thai style building with a traditional northern of Lan Na style rooftop.          On the occasion of the Celebrations of the Golden Jubilee of his Majesty the King's Accession to the throne, and the 700th Anniversary of the Esbablishment of Chiang Mai in 1996, the Chiang Mai National Museum has been under renovation. The museum building has been expanded to its original full plan and the permanent exhibition will be revised with new displays and additional information, enhanced by new technology. The revised exhibition will be divided into six topics.