How about Picasso's Guernica?
Guernica is a very famous painting that has a rich and fascinating back story with political, personal, social, historical, and artistic significance.
EDIT:
“Guernica” is indeed an example of an abstract painting!
“Guernica” is certainly an abstraction of reality.
I mean real people and real animals do not look like Picasso’s people and Picasso’s animals in his painting “Guernica”.
Realize that not all abstraction is completely non-representational.
Abstraction in a painting merely distorts reality for artistic effect.
It is true that Non representational abstraction is one form of abstraction where there is no reference at all to anything in the real world… an exercise in pure color, form, line, texture etc.
http://en.wikipedia.org/wiki/Guernica_(painting)
DEFINITION OF ABSTRACT ART:
“Abstraction indicates a departure from reality in depiction of imagery in art. This departure from accurate representation can be only slight, or it can be partial, or it can be complete. Abstraction exists along a continuum. Figurative and representational (or realistic) art often contains partial abstraction.”
http://en.wikipedia.org/wiki/Abstract_art
This site “Guernica” by Ted Lang says:
“It was an abstract painting, highlighted by things Spanish and accentuating body parts in a disorderly array…”
http://www.thepriceofliberty.org/04/03/19/lang.htm
ABSTRACT FINE ARTS: GEURNICA:
http://www.abstractfineartprints.com/print-956-318146/guernica-c1937-art-print/
Under the category ‘ABSTRACT”
You guessed it… Guernica by Picasso:
http://www1.brothersoft.com/mobile/26873.html
This site about Guernica the Picasso Painting says this about the painting in the first paragraph:
“Perhaps it is too abstract…”
Searching for example from a Yahoo Answers question I found a three year old quote verifying that this answerer (Angela l) thought that Guernica was an abstract drawn from reality :
“Stylistically, (Guernica) is made up of symbolic images drawn from reality (one could say abstracted)”
https://answersrip.com/question/index?qid=20071213200606AA0Rulu