List of national capitals by population 2015

 Mexico City is the densely populated, high-altitude capital of Mexico. It’s known for its Templo Mayor (a 13th-century Aztec temple), the baroque Catedral Metropolitana of the Spanish conquistadors and the Palacio Nacional, which houses historic murals by Diego Rivera. All of this resides in and around the Plaza de la Constitución, the massive main square also known as the Zócalo.