They are arguably the oldest, and most baffling ruins on the face of the Earth. It is hard to imagine how they did not come to be known as one of the wonders of the world like the Great Pyramid. Spectacular in its own right, the Great Pyramid is, yet it pales in comparison to the ruins of Puma Punku in Tiahuanaco, in South America. The ruins of Puma Punku are one of four structures in the ancient city of Tiahuanaco. The others three structures are; The Akapana Pyramid, the Kalasasaya Platform, and the Subterranean Temple.