Now you're talking Loron. 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.
Even with modern day technology and information, these structures defy logic, and confound those who seek to solve the mysteries that lie within them. The ruins of Puma Punku are said to be the most fascinating, and most confusing of all.
Who built these structures?
How were these structures built?
Why were these structures built?
These are all questions on the minds of those researching these ancient structures, and they are not easily answerable, if they can even be answered at all.
(From UFOs & Aliens)