A stupa (from the Sanskrit) is a type of Buddhist structure found across the Indian subcontinent, Asia and increasingly in the Western World.
Stupas are known in many Southeast Asian countries as chedi (from a Pāli synonym of stupa), and in some countries (particularly Sri Lanka) as dagoba (from Sanskrit dhatu- element, component, or relic + garbha - storehouse or repository).
The stupa is the earliest Buddhist religious monument and was originally only a simple mound made up of mud or clay, or a cairn in barren areas, to cover supposed relics of the Buddha.