Mysteries From Ancient Times That Still Defy Explanation

The Hellenikon Pyramid

Like the Egyptian pyramids, the Hellenikon Pyramid in Argolis, Greece, is largely a mystery. When was it built? And why? And who built it? Investigators have run across a reference to the Hellenikon Pyramid claiming that it was used as a tomb for soldiers fighting over Argos, but no proof was found to back that up. It may have been built around 2721 BCE, making it older than the Egyptian pyramids.