The Hundred Columns Hal is the second largest building of the Terrace and the final edifices. It is also called the Throne Hall or the Imperial Army's hall of honour.
This hall was used for the reception of the Subject Nations, where the king received nobles, dignitaries, and envoys bearing tribute.

Its eight stone doorways (two on each of the four sides) are decorated on the south and north with reliefs of throne scenes and on the east and west with scenes depicting the king in combat with monsters.