Category:1859 in Istanbul
Most populous urban areas of the world: Algiers [DZ] · Boston [US] · Istanbul [TR] · Jakarta [ID] · Kolkata [IN] · London [GB] · Madrid [ES] · Mexico City [MX] · Milan [IT] · New York City [US] · Paris [FR] · Philadelphia [US] · Saint Petersburg [RU] · San Francisco [US] · Shanghai [CN] · Tehran [IR] · Toronto [CA] · Washington, D.C. [US]
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