Persepolis is situated 60 km northeast of the city of Shiraz in Fars Province, Iran. The earliest remains of Persepolis date back to 515 BC. It exemplifies the Achaemenid style of architecture. UNESCO declared the ruins of Persepolis a World Heritage Site in 1979.
The name Parsa meant ‘City of The Persians’ and construction began at the site in 518 BCE under the rule of King Darius the Great ( who reigned 522-486 BCE). Darius made Parsa the new capital of the Persian Empire, instead of Pasargadae, the old capital and burial place of King Cyrus the Great. Because of its remote location in the mountains, however, travel to Parsa was almost impossible during the rainy season of the Persian winter when paths turned to mud and so the city was used mainly in the spring and summer warmer seasons. Administration of the Achaemenian Empire was overseen from Susa, from Babylon or from Ecbatana during the cold seasons and it was most likely for this reason that the Greeks never knew of Parsa until it was sacked and looted by Alexander the Great in 330 BCE (the historian Plutarch claiming that Alexander carried away the treasures of Parsa on the backs of 20,000 mules and 5,000 camels).
Though building began under Darius, the glory of Parsa which Alexander found when he invaded was due mainly to the latter works of Xerxes I and Artaxerxes III, both of whose names have been found (besides that of Darius) inscribed on tablets, over doorways and in hallways throughout the ruins of the city.
The great city of Persepolis was built in terraces up from the river Pulwar to rise on a larger terrace of over 125,000 square feet, partly cut out of the Mountain Kuh-e Rahmet (“the Mountain of Mercy”). To create the level terrace, large depressions were filled with soil and heavy rocks which were then fastened together with metal clips; upon this ground the first palace at Persepolis slowly grew. Around 515 BCE, construction of a broad stairway was begun up to the palace doors. This grand, dual entrance to the palace, known as the Persepolitan stairway, was a masterpiece of symmetry on the western side of the building and the steps were so wide that Persian royalty and those of noble birth could ascend or descend the stairs by horseback, thereby not having to touch the ground with their feet. The top of the stairways led to a small yard in the north-eastern side of the terrace, opposite the Gate of all Nations.
The great palace built by Xerxes I consisted of a grand hall that was eighty-two feet in length, with four large columns, the entrance on the Western Wall. Here the nations which were subject to the Empire gave their tribute to the king. There were two doors, one to the south which opened to the Apadana yard and the other opening onto a winding 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. Off the Apadana yard, near the Gates of all Nations, was Darius’ great Apadana Hall, where he would receive dignitaries and guests which, by all accounts, was a place of stunning beauty (thirteen of the pillars of the Hall still stand today and remain very impressive).
Limestone was the main building material used in Persepolis. After natural rock had been leveled and the depressions filled in, tunnels for sewage were dug underground through the rock. A large elevated cistern was carved at the eastern foot of the mountain to catch rain water for drinking and bathing.