What is the largest city in Türkiye?

The largest city in Turkey is Istanbul

Istanbul (Turkish: ?stanbul; English: Istanbul), formerly known as Constantinople, is the economic, cultural, and transportation center of Turkey. A world-famous tourist destination and one of the bustling international metropolises, it is located at the eastern end of the Balkan Peninsula, on the west bank of the southern entrance of the Bosporus Strait, and strangles the entrance to the Black Sea. It is a transportation hub for Europe and Asia, and its strategic position is extremely important. Covering an area of ??5,343 square kilometers, the urban area has expanded to the north of the Golden Horn. Usküdar on the east coast of the Bosporus has also been included in the urban area, becoming a modern city spanning Europe and Asia.

Ankara, the capital of Turkey:

Ankara, located in the northwest of the Anatolian Plateau on the Asia Minor Peninsula, is the capital of Turkey and the second largest city after Istanbul. The city is also the center of politics, economy, culture, transportation and trade. It is the second largest industrial center in the country after Istanbul. There are east-west railway lines leading to major cities and ports in the country, and there are many highways leading to all directions. . There are ancient castles and other ruins, and it is known as the "Heart of Türkiye".