This is Wat Chai Sri, a temple just outside of Khon Kaen. It’s a beloved attraction in Thailand’s Isaan province, because of its unique murals depicting the ancient Sin Sai story.
Sin Sai is a valuable literature of the former Lan Chang people. From 1354 to 1707, the Lao kingdom of Lan Chang was one of the largest in Southeast Asia… they even ruled here in Isan.