I study architecture and urbanism in Europe and the Mediterranean basin between late antiquity and the Middle Ages: the transformation of cityscapes during and after the disintegration of the Roman Empire, and the practical and ideological factors that made medieval cities distinctly different from their ancient Roman predecessors, in terms of both form and function. I also work on the history and material culture of early monasticism, especially urban monasticism, in the western Mediterranean, and I collaborate in underwater excavations at the city of Caesarea Maritima in Israel.

I received my Ph.D. in Classical Art and Archaeology from the University of Michigan in 2006, and joined the Hunter College faculty in August, 2010. I’ve held residential fellowships at the American Academy in Rome (2005-07), the Center for Advanced Study in the Visual Arts of the National Gallery in Washington, DC (2009-10), and Dumbarton Oaks in Washington, DC (2016-17). I currently serve as Associate Editor for Bryn Mawr Classical Review, and sit on the editorial board of Speculum (2017-21).

My books include The Aurelian Wall and the Refashioning of Imperial Rome, A.D. 271-855 (Cambridge University Press, 2011); The Afterlife of the Roman City. Architecture and Ceremony in Late Antiquity and the Early Middle Ages (Cambridge University Press, 2015); Fifty Early Medieval Things. Materials of Culture in Late Antiquity and the Early Middle Ages (Cornell University Press, 2019, co-authored with D. Deliyannis and P. Squatriti); and, most recently, The Making of Medieval Rome: A New Profile of the City, 400 – 1420, an urban history meant in part to complement and in part to supplant Richard Krautheimer’s classic Rome: Profile of a City 312-1308.