This, the glory of ancient Persia, is the city of kings Darius and Xerxes, a metropolis which buzzed with traders from the 5th century BC. Set on an immense terrace, it was approached from the plains up shallow steps, leading to the monumental Gate of All Nations.
The portal, carved with bulls’ heads, has inscriptions in three languages urging travelers to respect each other’s cultures.
Persepolis was the ceremonial capital of the Achaemenid Empire. It is situated in the plains of Marvdasht, encircled by southern Zagros mountains of Iran. Modern day Shiraz is situated 60 kilometres southwest of the ruins of Persepolis. The earliest remains of Persepolis date back to 515 BC. Wikipedia