These buildings (pagoda, stupa) became prominent as Buddhist monuments used for enshrining sacred relics. Shrines containing purported relics of Orpheus were regarded as oracles. Even ancient relics and ruins, broadly speaking, are historical sources. The main archaeological relics from these times are symbol stones. He opposed the sale of indulgences, celibacy, pilgrimages, pictures, statues, relics, altars, and organs. Pilgrimages often centered on the veneration of relics. Reliquaries are containers used to protect and display relics. Reliquaries provide a means of protecting and displaying relics. Miracles play an important role in the veneration of Buddhist relics in Southern Asia. Beads may be made to include enclosed sacred relics or drops of holy water. There are two "stupas" over their relics. The antimins contain the relics of a saint. Many Chinese cultural relics have been discovered in later periods. The subsequent history of the relics is not clear. Hangzhou is known for its historic relics and natural environment.