To rethink the existing architecture of world governance and propose alternatives for a new world governance, we need to identify the actors and spaces that are already at work in this domain. All political spaces, both existing spaces and to those that need to be created, where power, participation, and representation are at play are necessarily characterized by struggle and tense relations. The new political architecture is being built simultaneously on two main levels: locally (including states, however diverse they may be); and globally (the inter-state context but also, and especially, the new transnational and global spaces). Between the local and global levels lies the regional level, which is gradually taking shape. What are the alternatives for building a new governance architecture? How do we create them?