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Iran lies between the Caspian Sea and the Persian Gulf, a high plateau ringed by the Alborz and Zagros mountains. Persepolis, begun around 518 BCE under Darius I, was a ceremonial capital of the Achaemenid Empire. Tehran is the capital and largest city.

Naqsh-e Jahan Square, Isfahan
Photo: Sepidesadegh, CC BY-SA 4.0