Southwest of the Potala an unmarked road leads around the eastern side of Chagpo Ri, the hill that faces Marpo Ri, site of the Potala. Take this road past stone carvers and rock paintings to Drubthub Nunnery. The nunnery is dedicated to Tangtong Gyelpo, the 15th-century bridge-maker, medic and inventor of Tibetan opera, who established the original nunnery on the top of Chagpo Ri. Gyelpo’s white-haired statue graces the nunnery’s main hall.
