As augmented reality (AR) is becoming technologically possible and publicly available through mobile smartphone and tablet devices, there has been relatively little empirical research studying how people are utilizing mobile AR technologies and forming social practices around mobile AR. This study looks at how mobile AR can potentially mediate the everyday practices of urban life. Through qualitative interviews with users of Layar, a mobile AR browser, we found several emerging uses. First, users are creating content on Layar in ways that communicate about and through place, which shapes their relationship and interpretations of places around them. Second, we found a growing segment of users creating augmented content that historicizes and challenges the meanings of place, while inserting their own narratives of place. Studying emerging uses of AR deepens our understanding of how emerging media may complicate practices, experiences, and relationships in the spatial landscape.