Cologne Bonn Airport Cologne native and the first post-war Chancellor of West Germany. The airport is located in the district of Porz and is surrounded by the "Wahner Heide" nature reserve. The airport is centrally located in the Cologne Bonn Region southeast of Cologne city centre and northeast of Bonn. Cologne Bonn Airport is one of the country's few 24-hour airports and serves as a hub for Eurowings, FedEx Express and UPS Airlines as well as a focus city for several leisure and low-cost airlines. It is also a host of the German and European space agencies DLR and EAC, part of ESA,
Historical Archive of the City of Cologne the 1897 building has been used as a private library by Gerling, a large insurance company. In 1971, a six-story archive building by architect Fritz Haferkamp was built on Severinstraße in the southern part of Cologne's city center. An underlying principle of the design was to protect archival records from fluctuations in weather and climate while creating a balanced room climate. In a move away from the contemporary popularity of electromechanical air conditioning, Haferkamp preferred a structural-physical, self-regulating solution that needed only little additional climate technology. As the "Cologne Model", the building became a model for many later archive buildings