What was the capital of the Aztec Empire?

The capital of the Aztec Empire was Tenochtitlan. This city was founded in 1325 on an island in Lake Texcoco and became a major political, economic, and religious center for the Aztecs. Tenochtitlan was notable for its sophisticated layout, which included canals, bridges, and a complex system for agriculture known as chinampas, or floating gardens. The city was home to impressive architecture, including the Templo Mayor, which was dedicated to the gods Huitzilopochtli and Tlaloc.

As for the other options, Tikal was a major city in the Maya civilization, located in present-day Guatemala; Cuzco was the capital of the Inca Empire in present-day Peru; and Teotihuacan, known for its monumental pyramids and urban planning, existed prior to and influenced the Aztecs but was not their capital. Thus, the unique characteristics and historical significance of Tenochtitlan firmly establish it as the capital of the Aztec Empire.