Pakhua art represents the early stage of Khmer sanctuaries in Thailand, dating back to the 10th century, predating many later stone castles. Its main feature is the construction using small bricks and a mortarless technique, where brick surfaces were polished and joined with natural resin. The towers are relatively slender, with bases decorated with simple lotus moldings, lacking the complex carvings found in later periods. At Prang Khaek, we see a fusion of authentic Pakhua-style towers and Ayutthaya-period restorations that added plasterwork and arched doorways. It serves as vital evidence showing the early expansion of Khmer cultural influence into the Chao Phraya River basin in history.