Phra Nakhon Khiri, also known as Khao Wang, is a historical park located in Phetchaburi, Thailand. It features a hilltop palace complex built during the reign of King Rama IV in the 19th century. The site includes several temples, pavilions, and a stunning view of the surrounding area. The complex is a popular tourist destination, attracting visitors interested in Thai history and architecture. It is surrounded by lush gardens and offers a glimpse into the royal lifestyle of the past. The site is also significant for its cultural heritage and is often included in local tours.