Very impressive temple. The most famous temple in the area. Definitely worth seeing when in Chiang Mai. There are about 300 steps to climb to get to the temple but there is a funicular railway if you can't face that. Tip: get a tuk tuk to the zoo and a red van to the top. It's a very twisty road to the top - try to sit in the front seats of the van if you are at all travel sick.