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
Cologne Carnival At that time, Cologne was the largest central European city, having a huge percentage of agricultural land inside its walls and the farmers guild was well respected and influential). The sword and the flail symbolize his loyalty to the empire and his truthfulness. As the keeper of the city, he also keeps the city keys at his girdle. The key symbolizes the heroes of the city militia contingent in the Battle of Worringen AD1288, whereafter the city achieved independence from the archbishop of Cologne. The "maiden", also called "" (Her Loveliness) symbolizes the patronizing mother Colonia and is traditionally played