While the problem of intersubjectivity has motivated a great deal of sociological research, there has been little consideration of the relationship between intersubjectivity-sustaining practices and the physical environment in which these are enacted. The Museum of Jurassic Technology (MJT) is a strategic site for exploring this relationship. With its labyrinthine layout and bewildering exhibits, the MJT provides a natural “breaching experiment” in which concrete elements of the space disrupt normal competencies for sustaining presumptions of intersubjectivity. Using ethnographic data on visitor interaction, this article specifies two disruptive aspects of the physical environment and identifies four methods of repair on which visitors rely to reestablish presumptions of intersubjectivity. The analysis of spatially situated processes of intersubjective disruption and repair in an extreme case such as the MJT is a first step toward “emplacing” the intersubjectivity problem in more everyday settings.