This first-class royal temple has formerly named Wat Phra Borom That and is one of the most important historical sites in all of Thailand. According to the legend, Prince Thanakuman and Queen Hem Chala brought Buddha relics to Hat Sai Kaeo and built a small pagoda in 291 AD. Later on, King Si-Thamma Sokarat established the city of Nakhon Si Thammarat and built a new pagoda on the same site. The present pagoda has a distinctive Sri Lankan style, measuring 55.78 meters high. The top is entirely covered by pure gold. Apart from the pagoda, surrounding buildings also has important histories, especially the royal building which dated back to Ayutthaya period and the Sam Chom building where the Buddha image attired in royal wardrobe, Phra Si Thamma Sokarat, is housed. There are beautiful artifacts displayed in Khian and Pho Lanka buildings.