Mahathat Temple is the most historically and artistically significant ancient temple in Sankhaburi District, Chainat Province. In the past, it served as the royal temple of the city of Phraek Si Racha, an important frontier city during the transitional period before the establishment of Ayutthaya. Scholars believe that Wat Mahathat was originally constructed prior to the Ayutthaya era and underwent major restoration during the early Ayutthaya period. This reflects the city’s important role as both a religious and administrative center of the Noi River basin.

The temple’s most distinctive national landmark is the Phra Mahathat Chedi, commonly known as the “Starfruit-shaped Chedi.” This prang-style chedi rises prominently on a base articulated with angular projections resembling the ridges of a starfruit, a hallmark of early Ayutthaya art. The structure is solid and elegantly proportioned. Its walls are adorned with recessed niches containing stucco Buddha images. Intricate flame motifs and refined decorative details that remain visible today demonstrate the mastery of early Ayutthaya craftsmen and the flourishing state of Buddhist art during that period. The chedi is therefore regarded as one of the most complete and beautiful examples of early Ayutthaya architecture in the central region of Thailand.

Inside the main vihara enshrines “Luang Pho Mor,” a laterite Buddha image in the Mara-Vijaya posture. The image possesses a solemn yet serene expression. Local people believe in its sacred power, particularly in healing illnesses and providing protection from harm. As a result, Mahathat Temple continues to serve as a spiritual center for the community. The atmosphere inside the vihara is peaceful and filled with devotion, reflecting the deep connection between religion and local way of life.

Surrounding the main structures are other important archaeological remains, including a vihara housing a reclining Buddha, ancient building foundations, and remnants of the original boundary wall that clearly outline the layout of an ancient temple complex. These elements collectively illustrate the former grandeur of Phraek Si Racha, which once flourished as a religious and commercial center of the Noi River basin. Walking through Mahathat Temple feels like studying history through architecture that has endured the passage of time.

Mahathat Temple is not only a valuable historical monument but also an important testament to the artistic development from the pre-Ayutthaya period to the height_ of the Ayutthaya Kingdom. For those interested in history, art, and the roots of civilization in the upper Chao Phraya basin, Mahathat Temple is truly a destination not to be missed.