Mexico's Pre-Aztec Teotihuacan Ruins is a old city with several buildings and temples along the ancient town's main road.

The Temple of the Sun is the 3rd world's tallest man-made pyramid (after another pyramid in Mexico (#2) and one in Egypt (#1)).

It was interesting to see that along the sides of the pyramid, there were small stones jutting out. This was done purposefully by the architect in order to prevent erosion of the materials placed on top of the rock (though no technology was powerful enough to combat a good few hundred years of time).

Here is Eric at the top of the Temple of the Sun... enjoying the vistas!

From the top, here is the Temple of the Moon located a little further along on the main strip (you aren't allowed to climb this one to the top).

Here is a bird's eye view of the area from the Temple of the Sun.

Some interesting sculptures of the gods guarding the entrance way of many temples.

Inside you can still see some of the pre-aztec designs. It's unbelievable to see that they have lasted this long!

Here is the full drawing recreated based on a collection of other versions of this same motifs across the ruins.

Another design of a drinking jaguar.

Exquisite carvings of warriors (this one with a bird-like profile) we found in one of the temples.

A view of the Temple of the Sun with the mountains peaking out in the background.

I liked this picture of a skeleton -- it is a part of a bigger mural found outside the ruin's museum.

Inside the museum is an awesome 3D recreation of the ruins as experts believe they were.

There was some peaceful protesting against the plan to build a Wal-Mart near the Teotihuacan ruins. Wal-Mart seems to be a very well known brand here... still, I have not throughout the trip seen a StarBucks!