Teotihuacan Sun Pyramid, third largest pyramid in the world, built around 100-150 AD, and located outside of Mexico City. Taking this picture was a bit trying as I sat on a hill of swarming fire ants. Swatting many off me, but still receiving four bites, it took over 24 hours for the sting of each bite to subside. The pain made for a decent picture though.

Stairway to the Heavens: looking up at the Teotihuacan Sun Pyramid

Avenue of the Dead, Teotihuacan

Standing on the Pyramid of the Moon,
the Pyramid of the Sun on the left.