I loved the ordinary reviews of Rachel Whiteread's white cardboard boxes here. Check out the popular culture link with the March of the Penguins which is a suprise box office hit.
What I really like about these comments is they domestrate how space is culturally constructed.
To some children, the white blocks looked like boxes of baby penguins.
To other people they represented:
Memories, space, emptiness, family, landscape, order, chaos - its all there for me.
So the shape of the boxes is not just about its shape, its what that shape represents to people.