For the first time in human history, more than half of the world's population lives in urban areas, and rural-to-urban migration is changing the face of countries around the world. This course examines the increasing importance of cities; the impact of urban areas on non-urban; the structures of urban areas and how they differ among the world's regions. It also considers how residence in urban areas is conditioned by race, class, and gender in small as well as large cities, and explores urban cultural landscapes. The course reviews the origin and growth of cities, and focuses on recent changes in urban areas.