Originally built in 1916, Mentsekhang (also called ‘Tibetan Medical and Astrological Institute’ at that time) was the place of research for Tibetan medicine and calendar calculations for the former local government. After a large expansion in 1980, it became the center for the treatment, training, research and production of Tibetan medicine. Covering an area of more than 40,000 sq meters (about 10 acres) and with a staff of 450, it is also the biggest Tibetan traditional hospital in that region.