North of Mexico City, Teotihuacan rose to a metropolis of over 100,000 by the 3rd century CE. The Avenue of the Dead links the Pyramids of the Sun and Moon with the Feathered Serpent temple. Apartment compounds, murals, and obsidian workshops reveal a sophisticated urban state, today conserved amid intense visitation.
A gridded plan on a north‑east axis organizes pyramids, plazas, and housing. Monumental platforms conceal earlier versions—evidence of ritual rebuilding.
Apartment compounds housed multi‑family groups; craft districts specialized in obsidian tools and ceramics. Influence spread across Mesoamerica, seen in art at distant sites.
Excavations and non‑invasive surveys (LiDAR, geophysics) continue to revise chronology. Conservation addresses subsidence, mortar compatibility, and visitor circulation.