[1]: 299–300, 302, 307–309 Within the roughly rectangular site of around 800x2000 m surrounded by an earthen wall and a moat 44 archaeological sites were found within and outside the wall, with the foundations of Wat Khlong Suwankhiri [th] being the largest and best preserved.

The architectural and artistic features are those of the Indian Gupta Dynasty, which promoted Buddhism in the region after it was first introduced during the reign of Ashoka.

The objects excavated in the Khu Bua city area include a sculpture of stucco and clay used to decorate buildings, such as Buddha images, Bodhisattva, angels, noble people, etc.

There are also tools and various accessories that reflect the advanced technological developments of the time, and it can be assumed that the city of Khu Bua prospered in the Dvaravati period around the 11th-16th Buddhist centuries.

There has been a stucco image of a female musician discovered at the Khu Bua archaeological site that reflects the culture of those days.