Cologne Stadtbahn and main line railway trains, and occasional recreational boats on the Rhine. Düsseldorf is also linked by S-Bahn trains, which are operated by Deutsche Bahn. The Rhine-Ruhr S-Bahn has 5 lines which cross Cologne.The S13/S19 runs 24/7 between Cologne Hbf and Cologne/Bonn airport. There are also frequent buses covering most of the city and surrounding suburbs, and Eurolines coaches to London via Brussels. "Häfen und Güterverkehr Köln" (Ports and Goods traffic Cologne, HGK) is one of the largest operators of inland ports in Germany. Ports include Köln-Deutz, Köln-Godorf, and Köln-Niehl I and II. Cologne's international airport is Cologne/Bonn Airport
Historical Archive of the City of Cologne municipal archive and library was erected between 1894 and 1897 to a Gothic revival design by Friedrich Carl Heimann: it was inaugurated in December 1897. The new building was large enough to accommodate the archive at a time of accelerated growth when the city of Cologne was absorbing many previously independent towns and villages. During World War II the building suffered damage from bombing. However, since all records and manuscripts had been moved into secure storage from as early as September 1939, the archive did not suffer any substantial loss. Since the archive moved to its new location in 1971,