In case you want to relax your mind or make a little wish, you may go to a temple. There are plenty of temples in Lamphun, for examples, Phra That Hripunchai, Wat Camadevi, Wat Phra Buddha Bhat Takpha etc. These temples mostly have glorious pagodas, Lord Buddha statues, or viharas, which you should have a chance of paying respect to for your own good fortune. After that, you can learn about some stories in the past through those traditional architectures in the temples. You should see what art in old days look like.