The full glory of the great Persian Empire was Persepolis a massive palace complex which was the ceremonial center of the ancient empire.
In 330 BC Alexander the Great destroyed Persepolis. In recent times there has been efforts to rebuild and restore some of the amazing columns, buildings, carved reliefs and even the original staircase built by Darius. Giant carved bearded bull like men stand guard flanked alongside an entryway.
Persepolis was the capital of the Achaemenid Empire (c. 550–330 BC) in the plains of Marvdasht which are surrounded by the southern Zagros mountains of Iran.