This proseminar will explore the architecture of the Neoclassical century (ca. 1750 - 1850), the "true style", as it made its appearance all over Europe and parts of North America, with a new revival from the 1890s to the 1940s. We will do research on the intellectual preconditions and key treatises (e.g., Laugier; Stuart and Revett) as well as on selected monuments, some of them right in Philadelphia (e.g., Second Bank; Waterworks; PMA). Field trips and practical instructions of analysis. No prerequisites.