What is the capital city of Mexico?

The capital city of Mexico is Mexico City. It serves as not only the political and economic center of the country but also has a rich historical and cultural significance. Mexico City is the largest city in Mexico and one of the most populous cities in the world. It was built on the ruins of the ancient Aztec city of Tenochtitlan and is home to numerous historical landmarks, museums, and vibrant neighborhoods, reflecting the country's diverse heritage.

The other locations mentioned, such as Guadalajara, Monterrey, and Puebla, are important cities in Mexico but do not serve as the country's capital. Guadalajara is known for its cultural contributions, particularly in mariachi music and tequila; Monterrey is an industrial hub; and Puebla is renowned for its colonial architecture and culinary traditions. However, none of these cities hold the same political and administrative importance as Mexico City.