This article explores the significance of mobility in the everyday structures of political life through a case study of political space in mid-eighteenth-century Stockholm. Analytical in approach, the study focuses on political action in public space, in its spatial negotiations of inclusion and exclusion, and investigates three particular places: the city itself, the central square Riddarhustorget and the city's wine shops. It shows that temporary political density and geographical proximity during meetings of the Estates of the Realm, when a large influx of people upset the corporate social division of the city, gave the lower orders the opportunity to cross thresholds into elite places. In addition, mobility between sites and the use of many places, rather than the mastering of one particular site, was a means for these orders to take part in political life. Results show that a unified ‘public sphere’ was not a prerequisite for extra-parliamentary politics. Instead, participation was made possible by moving between places, and learning how to navigate many different social and political boundaries.