Aztec legend says the Mexica people were guided by their god Huitzilopochtli to settle where they saw an eagle perched on a cactus eating a snake.
Their journey lasted many years looking for this vision.
Then, in 1325 AD on an island in Lake Texcoco they found an eagle perched on a cactus eating a snake.
This spot became the foundation of the Aztec city of Tenochtitlán, the heart of their powerful empire.
Tenochtitlán's major temple, the Templo Major, is now a UNESCO World Heritage Site.
