Phra Nakhon Khiri Historical Park is a significant cultural site located in Phetchaburi, Thailand. Established in the late 19th century, it features a blend of Thai and European architectural styles. The park is centered around a hilltop palace complex built by King Rama IV, showcasing beautiful structures and stunning views of the surrounding area. The park covers approximately 100 acres and includes several important buildings, such as the Phra Nakhon Khiri Palace and various temples. Visitors can explore the lush gardens, historical monuments, and learn about the rich history of the region, making it a popular destination for tourists and locals alike.