Darius the Great built the greatest and most glorious palace at Persepolis in the western side. The King of Kings used it for official audiences. The work began in 515 BC. His son Xerxes I completed it 30 years later. 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.
Persepolis (Persian: تخت جمشید/پارسه) was the ceremonial capital of the Persian Empire during the Achaemenid dynasty. Persepolis is situated 70 km northeast of the modern city of Shiraz in the Fars Province of modern Iran. In contemporary Persian, the site is known as Takht-e Jamshid (Throne of Jamshid) and Parseh. To the ancient Persians, the city was known as Pārsa, meaning "The City of Persians". Persepolis is the Greek interpretation of the name Πέρσης πόλις (Persēs polis: "Persian city").