Teen accidentally discovers lost 500-year-old civilisation once home to 20,000 American Indians after stumbling on a cannon ball in woods

AN ancient city which was once home to 20,000 people has been unearthed after a schoolboy found a cannon ball in the forest.

The long lost metropolis in Kansas dates back to the 16th Century and is believed to be Etzanoa, the second-largest Native American city.

https://www.thesun.co.uk/news/3367695/ancient-native-american-city-etzanoa-discovered/