Cologne central station

Köln Hauptbahnhof is the central railway station of Cologne, Germany. The station is an important local, national and international transport hub, with many ICE, Eurostar and Intercity trains calling there, as well as regional Regional-Express, RegionalBahn and local S-Bahn trains. EuroNight and Nightjet night services also call at the station. It has frequent connections to Frankfurt by way of the Cologne–Frankfurt high-speed rail line, which starts in southern Cologne. On an average day, about 280,000 travellers frequent the station, making it the fifth busiest station in Germany.The station is situated next to Cologne Cathedral.

There is another important station in Cologne, the Köln Messe/Deutz station across the river Rhine, just about 400 metres away from Köln Hauptbahnhof. The stations are linked by the Hohenzollern Bridge, a six-track railway bridge with pedestrian and bicycle lanes on each side. Frequent local services connect the two stations.

Source: Wikipedia