noun, plural agencies. 1. an organization, company, or bureau that provides some service for another: a welfare agency. 2. a company having a franchise to represent another. 3. a governmental bureau, or an office that represents it.
Causeways and Canals. Early on in the history of the city the Aztecs built causeways and canals for transportation to and from the city. A causeway is a raised road that allowed the people to easily travel over the swampy and wet areas. There were three major causeways that led from the island city to the mainland.
The center of the Aztec civilization was the Valley of Mexico, a huge, oval basin about 7,500 feet above sea level. The Aztec empire included many cities and towns, especially in the Valley of Mexico. The largest city in the empire was the capital, Tenochtitlan.he capital city of the Aztec empire was Tenochtitlan, now the site of modern-day Mexico City. Built on a series of islets in Lake Texcoco, the city plan was based on a symmetrical layout that was divided into four city sections called campans.