There are a group of royal residences on the western side of the hill consisting of the Phetchphoomphairot Building, Pramotmahaisawan Building, Wetchayanwichienprasat Building, Ratchathammasapha Building and Hor Chatchawanwiengchai Observatory.

    The original main residence, Phetchphoomphairot and Pramotmahaisawan Buildings are now being used as a museum exhibiting the royal paraphernalia of King Rama IV and King Rama V, decorative sculptures, and ceramics from China, Japan and Europe.

    The big white pagoda situated on the middle peak of the hill is Phrathat Jomphet. King Rama IV ordered the renovation of the old pagoda and later added a Buddha image inside. Visitors to the Palace should not miss the panoramic view of Phetchaburi City and other buildings on another two nearby mountaintops.

    There are several temples to be admired on the Eastern Mountain, one of which is Wat Maha Samanaram, which has a history that can be traced back to the Ayutthaya period and the place where murals by Khrua In Khong, a renowned Thai artist is located. Another temple located on top of the mountain is Wat Phra Kaew Noi, the Royal Temple of Phra Nakhon Khiri that was constructed based on the model of the Grand Palace in Bangkok.

    The Ordination Hall and Phra Sutthasela Chedi are also popular attractions. The ordination hall is a small beautifully symmetrical structure that is noted for the stucco at the gables, which is said to be a Phetchaburi masterpiece. In addition, the design of the Hall was based on King Rama IV's royal emblem. Phra Sutthasela Chedi was built from greenish gray marble. The marble was first sculptured into pieces to form a pagoda at Ko Srichang, an island off the coast of Pattaya on the eastern coast of the Gulf of Thailand, then it was dismantled and resembled at the Chedi which is on the western coast of the Gulf of Thailand.

    Getting to Phra Nakhon Khiri Historical Park

    The site is located on Phetkasem Road, just one kilometer from the town entrance junction. It is possible to climb the mountain by walking or by cable car.

    Walking up is a strenuous activity but it is the traditional way to approach the Park. For those choosing the cable car option, the fare, which inclusive of the museum admission fee is 50 baht for adults and 30 baht for children. Service is provided from 8:15 a.m. to 5:30 p.m

    Tham Khao Luang

    The cave is located approximately five kilometers from Khao Wang. Smaller in size, the cave is regarded as the largest and most important in the province. This is due to the fact that it houses a Buddha image cast under the royal command of King Rama V as a dedication to King Rama III and King Rama IV. At the foot of Khao Luang Hill, a large monastery locally known asWat Tham Klaep or Wat Bun-thawi is located. Attractions within the compound are a large multi-purpose hall and a chapel laden with beautifully carved door panels.

    Wat Kamphaeng Laeng
    This monastery was originally a Khmer place of worship constructed in accordance with Bhramanism. Originally, there were five prangs (Khmer-style pagoda) made of sandstone in the original worshiping place. When the influence of Buddhism in the region prevailed, it was turned into a Buddhist temple. A Shrine hall was later constructed. Today, visitors can only admire the remaining four prangs which remain next to the sandstone walls.

    Situated by Maenam Phetchaburi in the town centre, the large white pagoda of Wat Maha That, which can be seen from a distance, is a mixture of the late Ayutthaya and early Rattanakosin style with an adaptation of the prang of Lopburi. This Five Peak Prang housing the Lord Buddha's relics was constructed according to concept of Mahayana Buddhism. The elegantly designed stucco decorated on the viharn and the ubosot is proof to the excellent skill of Phetchaburi's local craftsmanship.

    Another important temple in the town, Wat Yai Suwannaram is situated 1 kilometer east of the city hall. The temple, featuring a windowless main shrine hall, houses magnificent 300-year-old murals of mythical angels. Its Sala Kanprian (multi-purpose hall) which was once located in Ayutthaya's Grand Palace, was entirely built of teakwood and decorated with fine woodwork especially at the door panels. There is also a preaching throne with magnificently elaborated Bangkok style woodcarvings and gold gilt works located in the hall.