Teotihuacan, with its Pyramid of the Sun, ... Running on a north-south axis is the city’s main street known today as the Avenue of the Dead, from a later Aztec name.

Teotihuacan was a city of massive stone pyramids that was home to as many as 200,000 people and was the heart of an ancient empire that flourished between 100 and 700 A.D., but was abandoned long ...

Archeologists have discovered the ruins of an 800-year-old Aztec pyramid in the heart of the Mexican capital that could show the ancient city is at least a century older than previously thought.