From time to time, just for fun, we cover fascinating stories about ancient structures. I’m intrigued by the work of Michael Tellinger who’s been researching and documenting ancient stone structures in southern Africa. By his estimate the ancient stone circles in southern Africa comprise the largest, most extensive stone archaeological site on the planet. Mainstream archaeologists say this area was sparsely populated with just a few thousand people in ancient times. However, Tellinger estimates that the stone circles number in the millions. So who built these structures that strangely have no doors or entrances and ring like bells?