That Dam
Stupa in Vientiane, Laos
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That Dam (Lao ທາດດຳ [tʰâːt dàm], meaning Black Stupa) is a large stupa located in Vientiane, Laos.[1] 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[2] who tried to protect them from an invasion by the Siamese army in 1827.