VENUE About Mexico City

Mexico City (Spanish: Ciudad de México, México, D.F., or simply D.F.) is the Federal District
(Distrito Federal), capital of Mexico and of the most important financial centers in North America. It is located in the Valley of Mexico, a large valley in the high plateaus at the center of Mexico, at an altitude of 2,240 metres (7,350 ft).

Some links about Mexico and Mexico City:

Official Tourism Page

Wikipedia Mexico City

Wikitravel Mexico City