Tombs of King of Kings

It is commonly accepted that Cyrus the Great was buried at Pasargadae. If there is any truth in the statement that the body of Cambyses II was brought home "to the Persians", his burying-place must be sought somewhere beside that of his father. Ctesias assumes that it was the custom for a king to prepare his own tomb during his lifetime. Hence the kings buried at Naghsh-e Rustam are probably Darius the Great, Xerxes I, Artaxerxes I and Darius II. Xerxes II, who reigned for a very short time, could scarcely have obtained so splendid a monument, and still less could the usurper Sogdianus (Secydianus). The two completed graves behind Takhti Jamshid would then belong to Artaxerxes II and Artaxerxes III. The unfinished one is perhaps that of Arses of Persia, who reigned at the longest two years, or, if not his, then that of Darius III (Codomannus), who is one of those whose bodies are said to have been brought "to the Persians."
Another small group of ruins in the same style is found at the village of Hajjiäbäd, on the Pulwar, a good hour's walk above Takhti Jamshid. These formed a single building, which was still intact 900 years ago, and was used as the mosque of the then existing city of Istakhr.
Since Cyrus the great was buried in Pasargadae, which is mentioned by Ctesias as his own city, and since, to judge from the inscriptions, the buildings of Persepolis commenced with Darius I, it was probably under this king, with whom the sceptre passed to a new branch of the royal house, that Persepolis became the capital of Persia proper. As a residence, however, for the rulers of the empire, a remote place in a difficult alpine region was far from convenient, and the real capitals were Susa, Babylon and Ecbatana. This accounts for the fact that the Greeks were not acquainted with the city until it was taken and plundered by Alexander the Great.
It has been universally admitted that "the palaces" or "the palace" burned down by Alexander are those now in ruins at Takhti Jamshid. From Stolze's investigations it appears that at least one of these, the castle built by Xerxes, bears evident traces of having been destroyed by fire. The locality described by Diodorus after Cleitarchus corresponds in important particulars with Takhti Jamshid, for example, in being supported by the mountain on the east.

Other palaces and structures

There were other palaces built, these included the Tachara palace which was built under Darius I, the Imperial treasury which was started by Darius in 510 BC and finished by Xerxes in 480 BC. The Hadish palace by Xerxes I, which occupies the highest level of terrace and stand on the living rock. The Council Hall, the Tryplion Hall, The Palaces of D, G, H, Storerooms, Stables and quarters, Unfinished Gateway and a few Miscellaneous Structures at Persepolis near the south-east corner of the Terrace, at the foot of the mountain.

The Throne Hall

Next to the Apadana, second largest building of the Terrace and the final edifices, is the Throne Hall or the Imperial Army's hall of honour (also called the "Hundred-Columns Palace). This 70x70 square meter hall was started by Xerxes 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. In addition, the northern portico of the building is flanked by two colossal stone bulls.
In the beginning of Xerxes's reign the Throne Hall was used mainly for receptions for military commanders and representatives of all the subject nations of the empire, but later the Throne Hall served to be as an imperial museum, who then later died aproximately 20 years after.

Apadana Palace

Darius the Great built the greatest and most glorious palace at Persepolis in the western side. This palace was named Apadana (the root name for modern "ayvan") and was used for the King of Kings' official audiences. The work began in 515 BC and was completed 30 years later, by his son Xerxes I. The palace had a grand hall in the shape of a square, each side 60m long with seventy-two columns, thirteen of which still stand on the enormous platform. Each column is 19m 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. The columns were joined to each other with the help of oak and cedar beams, which were brought from Lebanon. The walls were covered with a layer of mud and stucco to a depth of 5cm, which was used for bonding, and then covered with the greenish stucco which is found throughout the palaces. At the western, northern and eastern sides of the palace there was a rectangular veranda 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 avoid the roof being eroded by rain 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, and to place them 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. There were also two other stairways in the middle of the building. The external front views of the palace were embossed with pictures of the Immortals, the Kings' elite guards. The northern stairway was completed during Darius' reign, but the other stairway was completed much later.

The Gate of All Nations

The Gate of all Nations, referring to subjects of the empire, consisted of a grand hall that was almost 25 square metres, with four columns and its entrance on the Western Wall. There were two more doors, one to the south which opened to the Apadana yard and the other one opened onto a long road to the east. Pivoting devices found on the inner corners of all the doors indicate that they were two-leafed doors, probably made of wood and covered with sheets of ornate metal.

A pair of Lamassu's,which are bulls with the head of a bearded man stand on the western threshold, and another pair with wings and a Persian head (Gopät-Shäh) on the eastern entrance, to reflect the Empire’s power.

Xerxes' name was written in three languages and carved on the entrances, informing everyone that he ordered this to be built.