Thommanon temple is about 500meters 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 opening to the east, a moat and a rampart with two gopuras, one on the east and another on the west, and one library near the south-east of the wall. Only traced of the laterite base of the wall remain.
