Cahokia Mounds State Historic Site, Collinsville

At Cahokia Mounds State Historic Site, learn all about the city of Native Americans that developed and disappeared hundreds of years before Colonists arrived in America. When Cahokia reached its population peak in the 13th century, it had more inhabitants than London. The city disappeared by 1400 BCE, though, and the large mounds--the biggest of which stands 30 m (100 ft) high, 290 m (951 ft) long, and 255 m (836 ft) wide and covers 5.6 hectares (13.8 acres)--are all that remain at this UNESCO World Heritage site. Before touring the site, head into the museum and interpretive center to learn about the city's history and its culture and to see artifacts, such as stone, bone and shell artifacts used both in religious ceremonies and daily life. Make Cahokia Mounds State Historic Site a part of your Collinsville vacation plans using our Collinsville route planning site.