Persepolis

Persepolis, or Takht-e-Jamshid, the spring and summer capital of the Achaemenid kings, is arguably the most impressive archaeological site of the ancient Iranian world. Founded by Darius I (r. 522-486 B.C.), Persepolis remained the seat of Achaemenid royal power for nearly two centuries. Burned in 330 B.C., when Alexander of Macedon swept through Persia, the site was never rebuilt. 

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  View of Persepolis from above
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  Double-headed griffin capitals
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  Eastern gateway with guardian winged bull pillars
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  Stone columns, originally painted, of royal audience hall.

The carvings on the apadana, or audience hall, depict the subject peoples of the Achaemenid Empire in their native clothing bringing tribute from their respective lands, including textiles, livestock, and specialized goods. These reliefs underscore the vastness and cultural diversity of the Achaemenid Empire. 

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  Armenians bringing vessels and a bridled stallion as tribute
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  Medes bringing tribute of swords, armlets, trousers, pitchers, coats, and sweets.
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  Assyrians bringing rams, lambskins, bowls, and pitchers as tribute
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  Scythians bringing robes, trousers, armlets, and stallions as tribute
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  Bactrians bringing cups, bowls, and a Bactrian camel
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  Lydians bringing pitchers, bowls, armlets, and a two-horsed chariot as tribute
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  Susians bringing bows, a lioness, and two lion cubs as tribute