That Dam (Lao à ºÂà º²à ºÂà ºÂà º³ , 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 nÃÂga who tried to protect them from an invasion by the Siamese army in 1827.