That Dam (Lao ທາດດຳ [tʰâːt dàm], meaning Black Stupa) is a large stupa located in Vientiane, Laos. It is situated in the middle of the roundabout between Chantha Khoumane road and Bartholoni road.
Many Lao people believe it is inhabited by a seven-headed nāga who tried to protect them from an invasion by the Siamese army in 1827.
