Wat Phra That Chae Hang dating from 1355, during the reign of Pray Kan Muang, is the most sacred wat in Nan Province. It's set in a square, walled enclosure on top of a hill with a view of Nan and the valley. The Thai Lue influenced ubosot features a triple-tiered roof with carved wooden eaves and dragon reliefs over the doors. A gilded Lanna-style stupa sits on a large square base next to the ubosot with sides 22.5 m long; the entire stupa is 55.5m high.