The global city presents one available model for understanding urbanization and associated hierarchies of power. In International Relations, the global city is treated as a unit in a new type of international system, an increasingly important actor in world politics, or a site through which global processes operate. This article forwards an alternative perspective. It treats the global city as a dispositif of power. While the global city captures the fact that power and wealth are spatially concentrated in today's urbanizing world politics, the concept also has a world-making capacity. The article analyses this capacity in two contexts: Firstly, it presents a genealogy of the voyage of the global cities concept from critical academic scholarship to a buzzword of city elites and business consultants. Secondly, it performs a governmental analysis of global city reports and indexes. Finally, the article suggests that conceptualizing the global city as a dispositif enables the important task of imagining alternative ways of framing the meaning of urbanization in world politics.