"The space of a fictional world is a construct, just as the characters and objects that occupy it are, or the actions that unfold within it. Typically, in realist and modernist writing, this spatial construct is organized around a perceiving subject, either a character or the viewing position adopted by a disembodied narrator. The hetertopian zone of postmodernist writing cannot be organized in this way, however. Space here is less constructed than deconstructed by the text, or rather constructed and deconstructed at the same time. Postmodernist fiction draws upon a number of strategies for constructing/deconstructing space, among them juxtaposition, interpolation, superimposition, and misattribution."
-- Brian McHale, Postmodernist Fiction (info)