Updated: Feb 12, 2018
Located right in the middle of Angkor Thom, the Great City of Angkor, is Bayon Temple, a Khmer Buddhist temple from the Angkorian era. It is about 3km from Angkor Wat.
The Bayon Temple is another must-see relic outside of Angkor Wat. It is richly decorated with numerous large smiling stone "faces" carved on the towers on the upper terrace of the temple. There were about 200 faces, believed to be of some Buddhas or the ancient kings.
More about Bayon Temple on wikipedia.
The wide view of Bayon Temple is a sight not to be missed.
The ground level of the temple has Buddha statues that sit and look outward from the temple.