CHIANG MAI, Thailand - The elderly Buddhist monk was a tough guy to please. I observed him meditating inside Wat Phra Singh, a 14th-century temple in the heart of Chiang Mai’s old city.

Chiang Rai is known for its rich art scene, delicious local dishes, relaxed atmosphere, and historic city center. At its cultural core is Wat Phra Singh, a 14th-century temple showcasing ...