The Pyramids are by no means the oldest human structures. Older
structures show much less refinement. Earlier structures are not as
common because they were often made of wood and bone, which do not
preserve as well as stone. Still, there are remains of some such
structures. The earliest evidence of a man-made habitation is the
Terra Amata site in France, which has remains of huts from about
380,000 years ago. "The dwellings consisted of small poles supported
by rocks for walls and larger poles in the center to support the roof"
(Streich n.d.). (A 2-million-year-old circle of stones from Olduvai
Gorge is not generally accepted as a legitimate artifact; Tattersall
1993.)
The Pyramids themselves show progressive development in their
architecture (Edwards 1991).
The evolution of architecture is cultural evolution, which has little
or nothing to do with biological evolution. Complex structures were
probably driven by the development of agriculture, which ties a
community to one location. Evolution into anatomically modern humans
predated that by quite a bit.
