Angkor Wat is The largest religious monument of the world was built in the 12 century by the Khmer king Suryavarman II, dedicate to Hindu god Vishnu but changed to Theravada Buddhist temple in 16 century. Angkor Wat is the most imposing mountain-temple ever built by the Khmer king. It's symbolize of Mount Meru with 5 top sancturies and the moat representing the cosmic ocean, but also its wonderful bas-reliefs, have no equivalent on the Angkor site. In 1585, the Portuguese traveler Diego Do Couto described Angkor Wat: " At half of a league from the city( Angkor Thom ) is a temple called Anga...this temple is such a particular construction that one can hardly describe it with the pen, nor can one compare it to any other building in the world " many centuries later his description still holds true!

Bayon was built by Khmer king Jayavarman VII in late 12 century and early 13 century, dedicated to Mahayana Buddhism, his state temple, at the centre of Angkor Thom, The capital city he turned into a safer heaven by erecting fortified wall around it. He place his kingdom under the protection of Buddha, whose statue was in the central shrine of the temple, and of the Bodhisattva Lokeshvara, whose features are represented on towers of temple, covering the cardinal directions thus extending the compassion of the king and a god he identified with over the entire kingdom. Others else from the giant smiling faces on the temple towers, you will see bas-relief of people daily life like cooking, kick boxing, cook fighting, a trade deal between Cambodian and Chinese, a women giving child birth...!

Ta Prohm was built by khmer King Jayavarman VII in late 12 century, dedicated to Mahayana Budhism, especially to a goddess Prajnaparamita whos his mother identified. It's temple forest claimed by nature, there are many giant trees growing on the roof of the temple, it got another name after the hollywood made a movie in 2001, called Tomb Raider.

Banteay Kdei temple built by king Jayavarman VII again! dedicated to Mahayana Buddhism in late 12 century. It's also temple forest, a bit smaller than Ta Prohm but it got trees grow on top as well. most people go to Ta Prohm so making Banteay Kdei less tourist visit temple.