Along the western side of the cloister is a pile of Buddhas that were damaged during the 1828 Siamese-Lao war. And in the sǐm (ordination hall) a slightly damaged Khmer-style Naga Buddha - which depicts the Buddha seated on a coiled cobra deity (naga ), sheltered by the naga 's multiheaded hood - is also on display just in front of the main seated Buddha; it is believed to date from the 13th century and was brought from a nearby Khmer site.
The sǐm is surrounded by a colonnaded terrace in the Bangkok style and topped by a five-tiered roof. The interior walls bear hundreds of Buddha niches similar to those in the cloister, as well as beautiful - but decaying - Jataka murals depicting stories of the Buddha's past lives. Portions of the Bangkok-style murals are unrestored 1820s originals, while others are a 1913 restoration.