The Big Important Thing that you're supposed to see in Chiang Rai is the White Temple, Wat Rong Khun.
It is pretty spectacular.
As you cross the bridge to the temple, you first pass over these hands reaching up from hell. There's one painted red fingernail there; my camera didn't do so well.
Visitors aren't allowed to take pictures inside, but the inside has murals depicting good and evil. The evil side has images from popular culture and the news, like the World Trade Center towers and Darth Vader and Spiderman. People were painting the inside walls when I visited, so the mural changes. Today, it also has Jake from Avatar.
Drinking is bad.
Smoking is bad.
My pictures don't convey the way that this temple glistens. It's made of plaster and sparkling glass mirrors. I'm sure it's lovely on any day, but in the sun on this day it was fantastic.