What is the main function of Mexico City?

The main function of Mexico City is to serve as the capital of Mexico and the seat of government. It is also the most populous city in the country and a major economic and cultural hub. Mexico City is home to numerous government institutions, including the National Palace, the Chamber of Deputies, and the Senate of the Republic. The city is also home to many cultural attractions, including museums, theaters, and historical landmarks, such as the Templo Mayor and the Zócalo.