Built at the same time as That Inhang Stupa in Savannakhet and That Phanom in Thailand, these were constructed in the Sikhottabong Empire for keeping the bones of Lord Buddha. At first, it was bulit by King Nanthasene for King Soummitham then it was restored by King Saysetthathirath in the 16th Century. The festival is performed on the third month of lunar calendar. This 29 meter high golden stupa is one of the most sacred sites in Laos.
How to get there: It is located along the bank of the Mekong River 6 kilometers from Thakhaek.