Iran is an Islamic republic on the Persian Gulf with historical sites recording to the Persian Empire. Great marble ruins mark Persepolis, the empire’s capital founded by Darius I in the 6th century B.C. The modern capital, Tehran, is home to opulent Golestan Palace, seat of the Qajar Administration (1794–1925), plus modern monuments such as the 435m-high Milad Tower.Capital: TehranSupreme leader: Ali KhameneiPresident: Hassan RouhaniPopulation: 77.45 million (2013) World BankCurrency: Iranian rialOfficial language: Persian
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