Phra Nakhon Khiri is a historical park in Phetchaburi province,Thailand. located on the three peaks of the 92 meters high hill. On the western peak is the actual palace with adjoining structures. The middle or central peak is a big chedi named Phra That Chom Phet. The eastern peak houses the Wat Phra Kaeo, the royal temple, built in similar fashion to the Wat Phra Kaeo in Bangkok. The whole complex was built as a summer palace by King Mongkut, with construction finished in 1860.