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.

The hall consisted of a porch, doorways, a courtyard and its great hall (70m by 70m) with
100 columns, each of which was 12m high. These columns were made of wood, and only their stone bases survive today.
This hall was used for the reception of the Subject Nations, where the king received nobles, dignitaries, and envoys bearing tribute.