Star forts are a world wide phenomena. Internet search star fort images and you’ll see they span the Americas, Europe and Asia. Viewed from above it becomes very clear that these things weren’t simply defensive but served a much more important role. What exactly that was is a mystery. There are only theories. Here's a basic look: https://youtu.be/BXx2dyTgnOg

Star forts are a world wide phenomena. Internet search star fort images and you’ll see they span the Americas, Europe and Asia. Viewed from above it becomes very clear that these things weren’t simply defensive but served a much more important role. What exactly that was is a mystery. There are only theories.