Thommanon temple is about 500 meters east of the Victory Gate. A temple dedicated to Brahmanism, it was built in the late 11th and" early 12th centuries by King Suryavarman II.
The temple is rectangular in plan with a sanctuary open¬ing" to the east, a moat and a rampart with two gopuras, one on the east and another on the west, and one libray near the south-east of the wall. Only traced of a laterite base of the wall remain.