Wat Phra Si Rattana Mahathat Chaliang is in the village of Chaliang, once a Khmer outpost about a mile south of Si Satchanalai. Believed to date from the 13th century, originally as a Khmer sanctuary, the monastery was restored and altered in the Ayutthaya period, as evidenced by its striking Ayutthaya-style central tower, or 'prang.' The style is a uniquely Thai design that evolved from the central tower found at early Khmer/Hindu sanctuaries. A few more photos of this temple can be seen in the gallery titled "Si Satchanalai."