As the only national-level museum in the world that collects, protects, displays and studies Tibetan culture in a comprehensive manner, its collection of cultural relics has more than 20,000 pieces, covering Tibetan medical history, folk customs, art, astronomical calendar and other fields, which can be called the "Encyclopedia of Tibetan Culture". The treasure of the town hall, "Chinese Tibetan Painting Grand View", is 618 meters long, integrating more than 700 Tangka and more than 3,000 embroidered patterns, and has won the Guinness World Records, showing the vastness and depth of Tibetan culture.