This commoner's temple was built towards the end of the Ayutthaya period. Over the years it was known by various names. King Rama VI eventually ordered the name to be changed finally, as it had the same name as a temple Bang Yireuatai in Thonburi, Wat Inthara. Somdet Phra Watchirayanwong (MR.Cheun) of Wat Bowonniwetwihan gave it the name by which it is known today.

Phra Si Ariyamettraiya: Also known as Luangpor Toh, this brick and stucco Buddha image was started in the reign of King Rama IV in 1867 and not completed until 60 years later in the reign of King Rama VII. It is a standing image with the alms bowl in the Sukhothai style, the tallest of its kind in the world. The body is decorated in glass mosaics and 24-carat gold. A staircase at the back of the image enables people to apply gold leaf to the body.

Sema: The alcove features stucco figures caricaturing politicians.

Museum: Historical artifacts from the temple such as old Buddha images and paintings can be seen here.