İstanbul,Turkey.

Istanbul is the largest city in Turkey, straddling the Bosporus Strait, the boundary between Europe and Asia. It is considered the country's economic, cultural and historic capital. The city has a population of over 15 million residents, comprising 19% of the population of Turkey,and is the most populous city in Europe[c] and the world's sixteenth-largest city. Istanbul was the 2010 European Capital of Culture. The city has surpassed London and Dubai to become the most visited city in the world, with more than 20 million foreign visitors in 2023.[14] The historic centre of Istanbul is a UNESCO World Heritage Site, and the city hosts the headquarters of numerous Turkish companies, accounting for more than thirty percent of the country's economy.