In the past, Wat Wihan Thong was used by kings and city locals to perform Buddist rituals. The temple was built near the Royal Palace on the western bank of the River Nan. Formerly, Wat Wihan Thong encompassed a vast area, and was situated south of the Chan Palace and flourished during the period that the Phra Ruang Dynasty ruled in Song Kwae city. By the time of the Sukhothai Era, artisans had the skills to build large, beautiful Buddha images.

The ruin today consists of the main stupa built with the architectural style of the beginning of the Ayutthaya period. Now only the first and second layers of the base remain. To the northeast of the stupa is a large viharn, presumably where Phra Attharot was installed. Presently, Phra Attharot, the Buddha image, is enshrined in Wat Saket's ubosot and its imitation installed in this viharn. To the southeast of the stupa is located a large ubosot built with bricks and plasterwork. The wall bears the weight of the roof’s wooden structure with its tiled roof. Skylights were built into the wall. To the east of the stupa, are the remains of a small building assumed to be a pavilion. The excavation of Wat Viharn Thong reveals both architectural and archeological evidence indicating that the temple was built around the 15th/16th Century. As with the palace, this temple was abandoned sometime after the sack of Ayutthaya in 1767. Today the structure has been carefully preserved on this ancient site.