Khao Wang” is a hill located in the heart of Phetchaburi city. “Phra Nakhon Khiri” palace was built by King Rama IV in 1859, with Chao Phaya Sri Suriyawong as the chief architect. It was built with a palace temple, Wat Phra Keo Noi, a stupa, to contain the relics of Lord Buddha, and many temple trees on both sides connecting the three hills and the group of the throne halls.
Phra Nakhon Khiri or Khao Wang hill has been the place of the annual fair of Phetchaburi for many years. The 2012 annual fair is scheduled to be held from 28th March to 6th April 2012 at Khao Wang and around the city of Phetchaburi. It combines with the Phetchaburi Red Cross Fair. As well as demonstrations of local craftsman and local wisdom, the city will be beautifully lit with thousands of lights. Each night there will also be a grand fireworks display.