History of Cologne (Cologne Tower), one of Cologne's most prominent highrises. Secondly, a permanent improvement in traffic infrastructure, which makes Cologne one of the most easily accessible metropolitan areas in Central Europe. Due to the economic success of the Cologne Trade Fair, the city arranged a large extension to the fair site in 2005. The original buildings, which date back to the 1920s, are rented out to RTL, Germany's largest private broadcaster, as their new corporate headquarters. A controversy started after Muslims in Cologne sought to build a mosque. Most important for the history of Cologne since the Middle Ages is the Cologne
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