In elaborating his vision of “post-secularity”, Habermas advocates developing a public sphere that is inclusive of diverse religious convictions while simultaneously safeguarding the religious neutrality of state institutions. The neat distinction Habermas draws between a religiously plural (informal) public sphere and a religiously neutral state, however, is not so easily established or maintained in practice. This is evident in controversies over the presence of religious symbols in the public square. This chapter compares dynamics surrounding the display of Nativity scenes, or crèches, in government buildings and their adjacent spaces in the US with dynamics in France and Spain, where different regulatory patterns, debates, and forms of contestation reflect distinct practical interpretations and applications of the principle of state neutrality. I argue that national variation results not only from different conceptions of neutrality as an abstract principle, but also from contrasting interpretations of the symbolism of the crèche, distinct classifications of the public spaces and buildings where it is displayed, and divergences in how the material and symbolic boundaries separating state and society are drawn.