This famous temple is situated on the south of Wat Phra Si Sanphet. Its large bronze seated Buddha image or Phra Mongkhon Bophit is one of the largest bronze Buddha images in Thailand with its measures of 9.5 meters across the lap and a height of 12.5 meters. The Buddha image is seated in the position of Subduing Mara. During the second fall of Ayutthaya, the building and the image were badly destroyed by fire. The present Vihara and Buddha image have been reconstructed and renovated in the reign of King Rama V. The open area located east of the Vihara was formerly Sanam Luang, where royal cremation ceremonies took place.