Due to the strong beliefs in religion since the ancient time, Cambodian ancestors have built a lot of temples with many stories carved on the wall as palace or sacred place. Temples have also become very popular destinations for tourists to appreciate the greatness of ancient Khmer.
In the Angkorean era, the ancient Khmer Kingdom dominated most of present Southeast Asia from 800 to 1430 AD. The Angkor Complex is the soul of Khmer people (approximately 90% of Cambodia Population). Inside the Angkor-complex area consist of 200 monuments, which spread over an area of 400 square kilometers. There are various Khmer temples were built between the 7th and 13th centuries by Khmer kings when the Khmer civilization was at its height of the extraordinary creativity. The Angkor architecture serves as the evidence of the strong Khmer religious beliefs - Hinduism and Buddhism. And, the most popular temples in the Angkor area are Angkor Wat, Angkor Thom, Bayon, Baphuon, Phimeanakas, Ta Keo, Ta Prohm, Banteay Kdei, Pré Roup, East Mebon, Kravan, Preah Khan, Neak Poan, Banteay Srey, Rolous Group, etc.
The archaeological site of Sambor Prei Kuk, “the temple in the richness of the forest” in the Khmer language, has been identified as Ishanapura, the capital of the Chenla Empire (Chenla Kingdom) that flourished in the late 6th and early 7th till 9th centuries CE. It is located in Kampong Thom Province, 30 km (19 miles) north of Stueng Sen city, 176 km (109 miles) east of Angkor and 206 (128 miles) north of Phnom Penh.
Banteay Srei temple is a 10th-century Cambodian temple dedicated to the Hindu god Shiva. Located in the area of Angkor, it lies near the hill of Phnom Dei, 25 km (16 miles) north-east of the main group of temples that once belonged to the medieval capitals of Yasodharapura and Angkor Thom. Banteay Srei is built largely of red sandstone, a medium that lends itself to the elaborate decorative wall carvings which are still observable today. The buildings themselves are miniature in scale, unusually so when measured by the standards of Angkorian construction. These factors have made the temple extremely popular with tourists, and have led to its being widely praised as a "precious gem", or the "jewel of Khmer art.
The Preah Vihear temple is a Khmer temple located spectacularly atop Pey Tadi, slightly east of the midsection of the mountain range of the Dangrek, being in Svay Chrum village, Kan Tout commune, Choam Khsant district, in the Preah Vihear province of northern Cambodia. It is also perched on the edge of a giant cliff, 525-meter (1720 ft) above the Cambodian plain and 625-meter (2051ft) above sea level. Lying out on an 800-meter north-south axis, the Preah Vihear complex has a single imposing approach, leading up through a series of five Gopura (towered entrance pavilions) connected by causeways and 120-meter-long steps. The temple gives its name to Cambodia’s Preah Vihear province and is 140km from Angkor Wat; approximately 460 km from Phnom Penh.
Bayon temple is a well-known and richly decorated Khmer temple at Angkor area in Cambodia. Built in the late 12th or early 13th century as the official state temple of the Mahayana Buddhist King Jayavarman VII, the Bayon stands at the center of Jayavarman's capital, Angkor Thom. Following Jayavarman's death, it was modified and augmented by later Hindu and Theravada Buddhist kings in accordance with their own religious preferences.
Phnom Bakheng is a Hindu and Buddhist temple in the form of a temple mountain at Angkor, Siem Reap, Cambodia. The construction of this temple mountain on Phnom Bakheng, the first major temple to be constructed in the Angkor area, marked the move of the capital of the Khmer empire from the capital Hariharalaya in the Roluos area to Angkor in late 9th century A.D.
Koh Ker Temple in Preah Vihear province is constituted as “one of the marvels of Cambodian monumental heritage” by UNESCO. The temple is located in Srayong commune, Kulen district, Preah Vihear province, about 120 km from Siem Reap.
Bakong, also known Indresvara, is one of the most beautiful temples in Siem Reap and is the first temple mountain of sandstone built by rulers of the Khmer Empire at Angkor near modern Sime Reap in Cambodia. In the final decades of the 9th century AD, it served as the official state temple of King Indravarman I in the ancient city of Hariharalaya, located in an area that today is called Roluos.