The Throne Hall or the Imperial Army’s Hall of Honor (also called the Hundred-Columns Palace) is one of palaces at Persepolis. It’s next to the Apadana Palace, and is the second largest building of the Terrace and the final edifices.
This 70×70 square meter hall was started by Xerxes I and completed by his son Artaxerxes I by the end of the fifth century BC. Its eight stone doorways 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. Two colossal stone bulls flank the northern portico. The head of one of the bulls now resides in the Oriental Institute in Chicago, Illinois.
At the beginning of the reign of Xerxes I, the Throne Hall was used mainly for receptions for military commanders and representatives of all the subject nations of the empire. Later, the Throne Hall served as an imperial museum.