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
History of the Jews in Cologne Jewish quarter was rebuilt and the previous inhabitants forgotten. After the destruction of the community during Second World War, the medieval foundations were discovered, among them a synagogue and the monumental Cologne "mikveh" (ritual bath). The archeological survey was conducted after the war by Otto Doppelfeld from 1953 to 1956. On the basis of the awareness of history the area has not been reconstructed after the war and has remained as a square in front of the historical Rathaus. Today, the Jewish quarter is part of the "archeological zone of Cologne". In Cologne there was one of the largest Jewish