It is an important archaeological site in Kamphaeng Phet Province, providing historical evidence of the stability of a small state along the Nan River that was able to govern itself. Despite having to bow to the authority of larger cities several times, Nan managed to preserve its cultural identity remarkably well. It is believed that in the past, the city walls were rectangular, approximately 3,600 meters long, 3.80 meters high, and 2.50 meters wide. The eastern wall ran alongside the Nan River, featuring the Victory Gate, which was used by the local princes and nobility to travel by water to the Rattanakosin Kingdom. To the south were the Chiang Mai Gate and the Tha Li Gate, allowing residents from within and outside the city to visit each other. Today, only 25 meters of the original wall remain intact, standing 5 meters tall, which comprises the western and northern sections. This area connects Mahawong Road with Anantaworadej Road. In 1993, the Fine Arts Department restored the wall, along with an additional 415 meters that had fallen into disrepair, and it was officially registered as a national archaeological site on October 25, 1994. For more information, you can contact the tourism coordination center in Nan Municipality at Tel. 0 5475 1169 or 08 4617 1542.