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.

The temple is believed to be built during the 14th century A.D. (the early Ayutthaya period). The main prang collapsed during the Ayutthaya period, but was restored. It collapsed again in 1911, so only the foundation of the main prang remains at present.

One of the most visited historical site of Ayutthaya, Wat Chaiwattanaram rests on the bank of the Chao Phraya river, to the west of the city island. The temple was built in 1630 by the command of King Prasat Thong, featuring the architectural style influenced by Angkor temple in Cambodia.