Name the most famous Aztec pyramid.

The Pyramid of the Sun is considered the most famous Aztec pyramid due to its size, grandeur, and significance within the ancient city of Teotihuacan, which flourished long before the rise of the Aztec civilization. This pyramid is one of the largest structures of its kind in the Americas and serves as a central point of interest for historians and archaeologists exploring Mesoamerican culture.

The Pyramid of the Sun was constructed in the early first century CE and is notable not just for its scale, but also for its role in religious and cultural practices of the people who inhabited Teotihuacan. It reflects the architectural and engineering prowess of the civilization, and its strategic alignment with astronomical events adds to its historical importance. The pyramid remains a popular site for tourists and scholars alike.

In contrast, while the Pyramid of the Moon is also significant and located in Teotihuacan, it does not match the same level of notoriety as the Pyramid of the Sun. The Great Pyramid is more commonly associated with ancient Egypt, and while the Pyramid of Quetzalcoatl has its own historical merits, it does not capture the same recognition or scale as the Pyramid of the Sun in the context of Aztec pyramids.