Cologne the Central Franconian and Ripuarian dialect areas. The city's famous Cologne Cathedral ("Kölner Dom") is the seat of the Catholic Archbishop of Cologne. There are many institutions of higher education in the city, most notably the University of Cologne ("Universität zu Köln"), one of Europe's oldest and largest universities, the Technical University of Cologne ("Technische Hochschule Köln"), Germany's largest university of applied sciences, and the German Sport University Cologne ("Deutsche Sporthochschule Köln"), Germany's only sport university. Cologne Bonn Airport ("Flughafen Köln/Bonn") is Germany's seventh-largest airport and lies in the southeast of the city. The main airport for the Rhine-Ruhr region
Historical Archive of the City of Cologne of photographs on the history of art, architecture, culture and photography in Cologne and the Rhineland. The plan was to build the “safest and state-of-the-art city archive in Europe“ by 2017. After the decision of the city council, a detailed concept was worked out and approved. In 2013, in the context of the city's financial crisis, local political debate began to move towards re-considering this decision, and even to imposing a planning moratorium. Protests by local support groups as well as national archive organizations followed. In 2017, the total damage from the collapse was estimated at 1.2 billion euros. Before