Avoid confusing Aztec and Mayan pyramids, which are similar. Two simple differences include the number of temples and the accessibility of stairs. Aztec pyramids are topped by two or more temples, whereas Mayan pyramids typically have one. Some Mayan pyramids served sacred functions and are insurmountable, while Aztec pyramids are fairly easy to climb.
Look for a long platform and a wide, railed double staircase. Little buildings of related purpose often mark the platform, which was lined with skulls in its day.
Start looking from a distance. Aztec pyramids were designed be visible landmarks, and stood taller than the jungle tree line. Today, while many pyramids are no longer whole, you can still sometimes see them from far away.
Understand the pyramids are made from blocks of stone. They usually contain intricate geometrical patterns inside, such as in the temple itself. Sometimes mosaics of this type were accentuated by primary colors on the walls that held a symbolic purpose.
Try to spot a big block in front of the temple where sacrifices took place. If you get to the top and inside the temple look for related sacred areas, such as the back room where the priest resided.
Consider the overall shape of the pyramid which is stepped and wide, and solidly architectural, so that it looks like a building atop a platform. By contrast, Egyptian pyramids are pointed, tall triangles. Now you know how to spot an Aztec pyramid.