Copper coated oxidized. The Namgyal Stupa (also known as the All-Victorious Stupa) is the seventh of the eight traditional stupas in Tibetan Buddhism which represent eight important events in the life of Buddha Shakyamuni. This particular stupa symbolizes the Buddha's decision to extend his life for three more months, at the request of a lay devotee, before leaving this world to pass into Nirvana.