The most striking feature of the temple is the large solid building (mondop) at the rear of what remains of the main prayer hall. A single narrow slit, almost the full height of the mondop, is all that pierces the structure. Through this narrow entrance, you glimpse the serene face of a single large seated Buddha image that almost completely fills the space enclosed by the building. The mondop once had a roof, but it is now gone, so the interior space is open to the sky. The walls of the mondop are much thicker than they need to be. This is because there is a narrow, cramped passageway between the outer and inner walls. The corridor was lined with depictions of the life of Buddha (the Jataka), and allowed devotees to climb up and around the image. Small openings in the inner wall allowed people to get a small glimpse of just one part of the image. The Ramkamhaeng National Museum is attempting to replicate this experience in the museum.