Woderfully, all ancient civilizations can have been constructed by the same unique masonry people.

Who is the people?
Athens' Parthenon, too, is said to be too old to be constructed first by Aryan.
Besides ancient Egypt, ancient Mesopotamia and Indus had, from the beginning, common city plan with stone waterworks underground.
They are called Sumer or Dravidian.
Rome learned its masonry from Etruscan.
Etruscan, too, may not have been Aryan.
They were all very considerate city planners.
After them, no people could be so clever a planner.
Wherefrom in the world did they come with such peerless common cleverness?