But those are some of the leading theories as to why the Chabin culture ended around 200 BCE. Now around that time, we start to see the emergence of several other cultures. You have the famous Nazca culture emerge right over here in southwest Peru. And they're most famous perhaps for the Nazca lines, these huge, I guess you could say drawings or patterns that are made in the land. Some of them are 300 meters or a third of a kilometer. And you really can't even appreciate what they represent unless you're looking at it from a significant altitude. Some people have theorized that this is some type of message they're trying to send to the sky gods.