Built during the reign of Rama III (1824–51), with a classic hŏr đrai (Tripitaka hall) in excellent shape. Like many hŏr đrai, it rests on tall, angled stilts in the middle of a pond to protect the precious scriptures (written on palm-leaf paper) from termites. It's kept open so you can look inside. The original murals in the little bóht beside the hŏr đrai show life in that era and are in remarkably good condition.