İzmir, historically Smyrna, is the third most populous city of Turkey and the country's largest port after İstanbul. It is located in the Gulf of İzmir, by the Aegean Sea. It is the capital of İzmir Province. The city of İzmir is composed of 9 metropolitan districts. These are Balçova, Bornova, Buca, Çiğli, Gaziemir, Güzelbahçe, Karşıyaka, Konak, and Narlıdere. Each district, and generally the neighborhoods within it, possesses distinct features and a particular temperament. The population of this urban zone is around 3,5 million