There were a few of these in the Angkor region, including at this entrance to Ta Som. It may be difficult to make out, but each 'post' of the Balustrade is actually a man holding the balustrade on one knee with his arms wrapped around it. The last man is holding up the head of the Naga, whose body forms the rail of the balustrade. To give some scale, the Naga head probably stands at about 9 feet tall.