Among the palette of European tools available to support the development of cross-border territories, this essay considers the impact that an Internationale BauAusstellung (IBA, International Architecture Exhibition) would have on the territorial development of the Greater Region. First of all it describes the specific nature of this spatial development tool, then identifies the specific characteristics of the Greater Region which would justify the use of such a tool. It concludes with a set of reasoned proposals on procedure and possible outcomes.
