Chiang Rai
Three hours north of Chiang Mai (or a quick flight from Bangkok) and a different scene entirely: smaller, slower, and built around three contemporary temples that have become the city’s shorthand. Wat Rong Khun — the all-white “White Temple” with its mirrored-mosaic spires and reaching-hands bridge — is the marquee, but Wat Rong Suea Ten (the Blue Temple) is arguably the better interior, and the Baan Dam Black House compound is the strangest art-pilgrimage in the country. North of the city, the Golden Triangle marks the Mekong meeting point of Thailand, Laos, and Myanmar, and the hill-tribe villages around Mae Salong and Doi Tung make a good two-day loop.