Late C19th- C20th modernism: the conditions, structures and ideologies of the world underwent rapid change. This caused an extended series of radical reassessments by artists of the ways they practiced. http://www.youtube.com/watch?v=3ZsQl6L9WCI
Delaunay DID see this tower. Yet he chose to use modernist conventions (not historical, realist conventions) to represent an experience and perception of his world.
What modern visual conventions did he employ?
What perceptions does he make visible?
Why were historical conventions not enough?
...and what is his title about?
Breughel's is an historical (pre-modern) painting of a tower, a representation of a symbol in an Old Testament narrative. It's an imagined image, an image the painter never saw with his own eyes.
So, it employs the conventions of realism - but is it real?
What are the historical conventions the artitst used (to make it look 'real?')
What's actually unreal about the picture?