The tour is guided by Andrew Dolkart, a popular New York City architectural historian, a professor of architectural history at Columbia's School of Architecture, Planning and Preservation, and the author of an award-winning history of Morningside Heights, Morningside Heights: A History of Its Architecture and Development.The tour begins at the Columbia Visitors Center, on the second floor of Low Library, and includes 21 stops at such architectural highlights as St. Paul's Chapel, Low Library and plaza, and the late-nineteenth-century classroom Havemeyer 309, which has been used as a set in a number of feature films.