Teotihuacan, "City of the Gods"

Friday's episode of Ancient Aliens featured a theory of Hugh Harleston, Jr. that the architectural layout of Teotihuacan includes a scale model of the planets of the solar system.

https://books.google.com/books?id=ZpAhi5...

Harleston concluded that the Temple of Xochitl on the volcanic mountain Cerro Gordo represented the location of a planet that was (at that time) unknown to science, and dubbed it Xiknalkan. It's location corresponds quite closely to Sedna, which was discovered by Mike Brown in 2004. The Ancient Aliens program, however, suggested that the location of Xochitl Temple might instead represent the planet that Mike Brown is currently looking for. Yet, this doesn't compute in that the expected perigee of Brown's "Planet 9" is about twice that of Sedna.

I'm wondering then if there might be some other temple or ancient site on the other side of Cerro Gordo. Looking at Google satellite view, there's something interesting along that same axis at:

19.815125, -98.797963

There's not enough detail in the imagery to tell exactly what it is.

I suppose we should also be looking for something at that range on the opposite side of Teotihuacan (as Sedna and Planet 9 theoretically cannot line up on the same side of the sun in perigee).

Anyway, if anyone has knowledge of the archaeology of the area, please enlighten us!