Ancient mysteries have us scratching our heads and pondering what life must have been like back then, too. Let’s get weird about the ancient world…Related: 10 Unsettling Unsolved Mysteries from the Old West10 The Hellenikon PyramidOlder than the Great Pyramid? The Greek Pyramid of Hellinikon | Ancient ArchitectsWatch this video on YouTubeIt’s easy enough to label the Egyptian pyramids as ancient mysteries, at least in terms of how those massive structures were built. Over in the western region of nearby Bolivia, the so-called Sajama Lines rival the aforementioned Nazca Lines for ancient mystery supremacy. Because that ancient list is pretty much the same thing.