Located 32 kilometers (20 miles) northeast of Mexico City, Teotihuac&aacuten, dating from 100 BCE to 750 CE, is one of the largest Mesoamerican sites and features expansive urban causeways and massive pyramids. The name Teotihuac&aacuten translates to 'the city of the gods' in the Nahuatl language of the Aztec people, who conquered the area over 700 years after the collapse of the Teotihuac&aacuten culture. Teotihuac&aacuten was laid out on a grid and functioned as a city with a densely-populated and fully-urbanized central zone that was carefully planned by its founders. Teotihuac&aacuten's greatest period of fluorescence coincided with the construction of the Pyramid of Quetzalcoatl around 200-225. At its peak, the city is believed to have supported a population exceeding 125,000 people making it the largest pre-Columbian settlement in the Americas.