The main temple mountain of the Bayon Temple is surrounded by two galleries bearing an extraodinary collect of bas-relief scenes of legendary and historical events. Overall on the outer wall of the outer gallery there are totally more than 11.000 carved figures at a length of about 1.2 km. On the walls of the Bayon temple most of the carvings talk about the battle between Khmer and Champa, Cambodian daily life and legends.
The surrounding gallery is opened up by five gates on the axis of the Bayon. The surrounding wall was like a rampart and protected the capital city from enemy. And it was a real strong rampart. All the gates are decorated with Bodhisattva Avalokiteshvara’s head and the sculpture of Churning of ocean of Milk as well.