The document summarizes key information about Istanbul, Turkey. It notes that Istanbul, located on the Bosphorus Strait dividing Europe and Asia, would be considered the capital of the world if the earth were a single state. It describes some of Istanbul's most important historical sites, including the Grand Bazaar and Cistern Basilica. It also provides details about the district of Zeytinburnu, located on the European side of Istanbul, stating its population size and highlighting two local attractions: a botanical garden known for growing medicinal plants, and a panorama museum depicting the 1453 conquest of Constantinople.