Building: Apadana
Materials used in construction: stone, oak and cedar wood, mud and stucco
Description: The palace had a grand hall in the shape of a square, each side 60 m long with seventy-two columns, thirteen of which still stand on the enormous platform. Each column is 19 m high with a square Taurus and plinth. The columns carried the weight of the vast and heavy ceiling. The tops of the columns were made from animal sculptures such as two headed bulls, lions and eagles. At the western, northern and eastern sides of the palace there were three rectangular porticos each of which had twelve columns in two rows of six. At the south of the grand hall a series of rooms were built for storage. Two grand Persepolitan stairways were built, symmetrical to each other and connected to the stone foundations. To protect the roof from erosion, vertical drains were built through the brick walls. In the four corners of Apadana, facing outwards, four towers were built.
The walls were tiled and decorated with pictures of lions, bulls, and flowers. Darius ordered his name and the details of his empire to be written in gold and silver on plates, which were placed in covered stone boxes in the foundations under the Four Corners of the palace. Two Persepolitan style symmetrical stairways were built on the northern and eastern sides of Apadana to compensate for a difference in level. Two other stairways stood in the middle of the building. The external front views of the palace were embossed with carvings of the Immortals, the Kings' elite guards.
Purpose: The centerpiece of the terrace was Apadana (the meeting place), the Great audience hall of Darius.
What remains today: Several of the huge columns that supported the audience hall are still standing. In 1933 two sets of gold and silver plates were found in the foundations of Apadana, they recorded in the cuneiform writing of Old Persian, Elamite, and Babylonian, the boundaries of the Persian Empire.

Building: Harem
Materials used in construction:
The Harem, where the royal ladies lived, was constructed in an L-shaped form. The main wing was oriented north-south; the west wing extended westward from the southern portion of the main wing.

The nucleus of the main wing was a large centrally placed columned hall with a portico facing a spacious courtyard on the north. The hall had four doorways whose jambs were decorated with reliefs. On the jambs of the southern doorway Xerxes is depicted entering the hall. He is followed by two attendants; one is carrying a fly whisk and the other is holding a parasol over the king’s head.