
The Pumapunku is a platform built on an east-west axis in the same plain where is situated Tiwanaku but far from it some hundreds of meters. It's main difference from the other structures at the plain is its T-shaped construction. It measures 150 meters on each side and 5 meters tall. The heaviest stone block weighs 131 tons and was dragged from a quarry 10 km away. One of the sunken temples includes projecting heads of volcanic tuff which may imply remote Chavin influence.

Reconstruction of Puma Punku platform
after Javier E Escalante Moscoso, Arquitectura Prehispanica en los Andes Bolivianos, 2nd ed. (La Paz, 1994)
However the runis are far of seem something like to the reconstruction indicated above:


Geometric forms, repetition and linearity.
Enjoy, really the place is really unique.

A well informed sinopsis of the main currents of research about Puma Punku and Tiwanaku can be consulted at:
On Reconstructing Tiwanaku Architecture. Authors: Jean-Pierre Protzen and Stella E. Nair Source: The Journal of the Society of Architectural Historians, Vol. 59, No. 3 (Sep., 2000), pp. 358-371