Cologne headquarters and workshops in Cologne. Other large companies based in Cologne include the REWE Group, TÜV Rheinland, Deutz AG and a number of Kölsch breweries. Cologne has the country's highest density of pubs per capita. The largest three Kölsch breweries are Reissdorf, Gaffel, and Früh. Historically, Cologne has always been an important trade city, with land, air, and sea connections. The city has five Rhine ports, the second largest inland port in Germany and one of the largest in Europe. Cologne-Bonn Airport is the second largest freight terminal in Germany. Today, the Cologne trade fair ("Koelnmesse") ranks as a major
NS Documentation Centre of the City of Cologne 2008, part of Cologne's city museums associations. So within the municipal administration, it is responsible for dealing with all subjects related to the city's Nazi past, including the visitor programs for former forced labourers, which the city has been running since 1989. The center has been the recipient of numerous awards, including the "special recommendation" of the 2000 Museum of the Year Award. The NS Documentation Center of the City of Cologne has been awarded several times: In 2004 Elzbieta Adamski, Employee of the NS Documentation Center of the City of Cologne, received by the hands of the president of