Wat O-Yai Yai, around the age of 20 - 21 century (1901 - 2100 B.E.), Wat O-Yai Yai does not appear on the boundary of the temple wall Probably only the glass wall showing the boundary of the Buddha The front of the pagoda was made in various shapes on a large base, 8 on each side. Inside, a large temple with a raised platform. With gags on both the front and back The base of the temple was built on a large first-class pyre. Behind the temple is an octagonal-shaped pagoda base, 6 meters wide on each side, supporting the base of 5 sides of the recess. Initially presumed to be a bell-shaped pagoda Outside the boundary wall to the west is the Sangkha area. Which has a large number of monks' bases Including traces of buildings, pavilions, wells and toilets (Vesakdi) in front of the temple, there is a large square pond called Sam Saen