This paper discuss Heidegger's concept of world based on the notions of space and discourse, as they appear in Being and Time. We intend to think world as discursive space and spatial discourse. That would allow us to understand the reason why, as Heidegger says in The Origin of the Work of Art, "the ruin of a world is irreversible". Thinking world as discourse may also enlighten the Greek definitions of man as political and discursive animal, as well as Wittgenstein's concept of language games.
World; Space; Discourse; City; Game; Language