Wat Si Khom Kham is a temple located in the centre of Mueang Phayao . Local people call it “Wat Phrachao Ton Luang”, is the largest Buddha image in the Chiang Saen style of art in the Lanna Thai Kingdom. Phrachao Ton Luang not only a signature Buddha image of Phayao, but also one of the Lanna Thai Kingdom. During Visakha Puja Day of every year, there is a ceremony to pay respect to Phrachao Ton Luang, called “The Ceremony to Pay Respect to Phrachao Ong Luang in the 8th Northern Lunar Month”.