If you're interested in learning all about past civilizations, don't miss Hill Tribe Museum. Study its unearthed relics and gain an insight into the rituals and behaviors of people from long ago.
You'll have sightseeing choices galore when in Chiang Rai. Hill Tribe Museum is a good place to begin here, but there are plenty of other interesting attractions to appreciate. Wat Phra Kaew, Wat Pra Singh, and Chiang Rai Rajabhat University are not far from the exhibition of human history and will round out your day nicely.