Wat Xieng Thong is one of the most important temples in the country of Laos. The word "wat" in Lao means temple, in this case, the Temple of the Golden City. Wat Xieng Thong is very old, built around 1560 by King Setthathirat, a patron of Buddhism, who ruled Laos from 1548 to 1571. The temple is located in a beautiful garden on the bank of the Mekong River where the Nam Khan, a smaller river runs into it.