The capital city of Iran is Tehran. As the largest city in the country, Tehran serves as the political, economic, and cultural hub of Iran. With a population of over 8 million people, it boasts a rich history, blending modernity and tradition. Tehran is home to numerous historical sites, museums, and landmarks, such as the Golestan Palace and the National Museum of Iran. The city is also a significant center for education and commerce, housing various universities and industries. It plays a crucial role in shaping Iran's national identity and reflects the country's diverse culture and heritage.