Five routes lead through Dortmund and follow the sound of the city: paths, water, materials, town and countryside, and public spaces. These routes cross Dortmund’s urban area, rendering history, the present, and geographical features visible and understandable in specific places. The hubs of these urban explorations are museums, industrial monuments, and the municipal church St. Reinoldi. The routes include aristocratic manors, parks, gas pipelines, village structures and churches going back to medieval times, buildings from postwar modernity, areas of industrialization and structural change, and colleges. Dortmunder Passagen opens up new perspectives and invites the reader to explore the city.