This wat on the outskirts of Suphanburi uses paintings to tell the story of Khun Chang and Khun Phaen. The epic poem in Thai literature, dating from the 15th century, is taken from a folklore tale: it is a love triangle set in a time of war. Khun Phaen (dashing but poor) and Khun Chang (rich but ugly), both vie for the affections of Khun Wanthong. The fast-moving story contains heroism, romance, sex, violence, and comedy. It is universally known in Thailand, with school children leaning key passages. The paintings are an excellent way of telling the long and compelling story. Spoiler alert: Khun Wanthong’s fate it shown below! 

There must be 100 paintings, each with a plate explaining the action in Thai and English. It's a long story!