The biggest and oldest historical site, Wat Kamphaeng Laeng provides evidence of Phetchaburi as a great settlement from 12^th – 13^th centuries. The prasat of three late rite tall stupas Prang is the architecture influenced by the Khamer of Bayon period It is surrounded by kamphaeng laeng or a laterite wall with some intact arched doors called Khopura. On the stone walls appeared the Dvaravati stucco mouldings such as the pattern of Naga or serpant gripped in the mouth of dragon and the columns. This is the masterpiece artists who create their own artistic work.