Teotihuacan was a massive pre-Columbian metropolis and ceremonial center in central Mexico that functioned as a multiethnic political and economic powerhouse during the Classic Period. The city’s urban landscape featured monumental structures like the Pyramids of the Sun and Moon alongside unique apartment compounds that housed a diverse population estimated to be between 100,000 and 150,000 residents. At its peak, it served as a primary hub for obsidian production and cultural interchange before suffering a selective, cataclysmic destruction of its civic center around 550 CE