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 Aztec Empire covered almost all of modern-day Mexico. The Aztecs capital city was in the middle of a huge lake in central Mexico, Lake Texcoco. The capital city was Tenochtitlan. The heart of the Aztec civilization lay in the Valley of Mexico, between Tenochtitlan and Teotihuacan.