Tenochtitlan was the capital city of the Aztec Empire, located on an island in the Lake Texcoco in present-day Mexico City. Founded in 1325, it became a thriving urban center known for its impressive architecture, including the grand Templo Mayor, and advanced agricultural practices such as chinampas, or floating gardens. At its height, Tenochtitlan was one of the largest cities in the world, boasting a complex social structure and vibrant trade networks. The city was a marvel of engineering, featuring canals and causeways that facilitated transportation and commerce, making it a crucial hub in Mesoamerican history.