Persepolis, The centre of the great Persian Empire

On a cleared plain (known today as the Marv Dasht Plain), Darius raised an enormous platform-terrace 1,345,488 square feet (125,000 square meters) big and 66 feet (20 meters) tall on which he built his council hall, palace, and reception hall, the Apadana, featuring a 200 foot-long (60 meters) hypostyle hall with 72 columns 62 feet (19 meters) high supporting a roof of cedar and cedar beams from Lebanon.