Pumapunku or Puma Punku (Aymara and Quechua puma cougar, puma, punku door, Hispanicized Puma Puncu) is part of a large Inca temple complex or monument group that is part of the Tiwanaku Site near Tiwanaku, in western Bolivia - notable for its exceptional and precisely-cut sandstone stonework. It's estimated that the stonework must have been constructed sometime after 536–600 AD.
Some of the stones weigh over 130 tons, and there are various theories about how they were cut with such precision, or moved from their quarry site.
Further info at Wikipedia
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