Phra Nakhon Khiri Palace, also known as Khao Wang, is a historical palace located in Phetchaburi, Thailand. Built in the 19th century during the reign of King Rama IV, it served as a summer residence. The palace complex features a blend of Thai and European architectural styles, set on a hilltop with stunning views of the surrounding area. The palace grounds include several buildings, temples, and gardens, making it a popular tourist destination. Visitors can explore the ornate structures, such as the Phra Nakhon Khiri Temple, and learn about the history of the region and the royal family.