I believe the answer is Post and lintel construction. (Columns).
I don’t think domes were invented.
Flying buttresses were invented for the Notre Dame Cathedral in France
Towers and spires are not likely.
I hope this helps!
Answer:
abstract art, also called nonobjective art or nonrepresentational art, painting, sculpture, or graphic art in which the portrayal of things from the visible world plays little or no part. All art consists largely of elements that can be called abstract elements of form, colour, line, tone, and texture. Prior to the 20th century these abstract elements were employed by artists to describe, illustrate, or reproduce the world of nature and of human civilization and exposition dominated over expressive function.