A centre of Buddhist learning and culture, Gangtok's most notable Buddhist institutions are the Enchey monastery, the Do-drul Chorten stupa complex and the Rumtek Monastery. The Enchey monastery is the city's oldest monastery and is the seat of the Nyingma order. The two-hundred-year-old baroque monastery houses images of gods, goddesses, and other religious artifacts. In the month of January, the "Chaam", or masked dance, is performed with great fanfare. The Do-drul Chorten is a stupa which was constructed in 1945 by Trulshik Rimpoché, head of the Nyingma order of Tibetan Buddhism. Inside this stupa are complete set of relics, holy books, and "mantras". Surrounding the edifice are 108 "Mani Lhakor", or prayer wheels. The complex also houses a religious school.