pulation of 23.4 million.European squares and houses sit next to busy markets selling Mexican food and Indian handicrafts.It is the largest city in both North and South America 
The Aztecs called it Tenochtitlan, and it was already an important city when the Spanish invaded in 
1521.Standing in the Zocalo, the main square, you can see 
buildings from the city's Spanish and Aztec past, and also a modern skyscraper, the first in the world 
to survive a major earthquake.The city has many tourist attractions, monuments, and parks.Mexico City offers a variety of experience.The country became independent in 1821.It is the