Stupa
A stupa (from Sanskrit: m., स्तूप, stūpa, Sinhalese: ස්ථූපය, Pāli: थुप "thūpa", literally meaning "heap") is a mound-like structure containing Buddhist relics, typically the ashes of deceased, used by Buddhists as a place of meditation. The term "reliquary" is sometimes used, after a Christian functional equivalent. Stupas are an ancient form of mandala.
Read more about Stupa.