Summary of "Ancient Aliens: Aztec God's Visit (Season 12, Episode 7) | History"

Teotihuacan Complex

Located 30 miles northeast of Mexico City, covering nearly 8 square miles.
Dates back to the 1st century AD, making it the oldest and most sophisticated city in Mesoamerica.
Preceded the Maya civilization by at least 100 years.
At its peak, supported around 100,000 residents, the largest city in the western hemisphere before the 15th century.
Served as a major commercial and religious center.

Pyramid of the Sun and Pyramid of the Moon.
Temple dedicated to Quetzalcoatl, the feathered serpent god.
Avenue of the Dead, a major thoroughfare flanked by over 200 smaller buildings, platforms, and pyramids.
Thousands of living quarters surrounding the complex.

Builders of Teotihuacan remain unidentified; no hieroglyphic writing or records found at the site.
Lack of evidence about rulers or origins of the inhabitants.
No known evolutionary development or smaller precursor sites to explain its architectural sophistication.
The engineering, craftsmanship, and technology required to build the city seem advanced beyond what is traditionally attributed to the local ancient peoples.

Local lore suggests the city was founded by divine beings or "sky gods," specifically a dozen Lords of Thunder according to the coastal Teutonic people.
Other Mesoamerican cultures linked the site to Quetzalcoatl, believed to have come from Venus.
The Aztecs named it Teotihuacan, meaning "City of the Gods," implying a divine or extraterrestrial origin.
The theory questions whether these "gods" were mythological or actual visitors who helped jumpstart civilization.