The Bayon (Khmer: ប្រាសាទបាយ័ន, Prasat Bayon) is a well-known and richly decorated Khmer temple at Angkor 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 centre of Jayavarman's capital, Angkor Thom.[1][2] Following Jayavarman's death, it was modified and augmented by later Hinduand Theravada Buddhist kings in accordance with their own religious preferences.
The Bayon's most distinctive feature is the multitude of serene and smiling stone faces on the many towers which jut out from the upper terrace and cluster around its central peak.[3] The temple is known also for two impressive sets of bas-reliefs, which present an unusual combination of mythological, historical, and mundane scenes. The current main conservatory body, the Japanese Government Team for the Safeguarding of Angkor (the JSA) has described the temple as "the most striking expression of the baroque style" of Khmer architecture, as contrasted with the classical style of Angkor Wat.[4]
Angkor Thom was built as a square, the sides of which run exactly north to south and east to west. Standing in the exact center of the walled city, Bayon Temple represents the intersection of heaven and earth.
Bayon is known for its huge stone faces of the bodhisattva Avalokiteshvara, with one facing outward and keeping watch at each compass point. The curious smiling image, thought by many to be a portrait of Jayavarman himself, has been dubbed by some the "Mona Lisa of Southeast Asia." There are 51 smaller towers surrounding Bayon, each with four faces of its own.
Bayon Temple is surrounded by two long walls bearing an extraordinary collection of bas-relief scenes of legendary and historical events. In all, there are are total of more than 11,000 carved figures over 1.2km of wall. They were probably originally painted and gilded, but this has long since faded. If you enter Bayon by the east gate and view the reliefs in a clockwise direction, here's what you'll see:
Source From: http://www.sacred-destinations.com and https://en.wikipedia.org