One day covers Cologne's cathedral and Old Town. A second day adds the Ruhr with Zollverein, the Gasometer and Duisburg-Nord Landscape Park. Aachen, Münster, Bonn with the Siebengebirge or the Hermannsdenkmal each deserve another day.
Not anymore. Since July 1, 2026, sightseeing costs €12 (€6 reduced), and the tower plus treasury combo is also €12. Kids 13 and under are free. You can still enter free of charge through the north portal to pray, attend Mass or light a candle.
Aachen Cathedral, Münster's Prinzipalmarkt, the Hohenzollern Bridge, Cologne's Rheinauhafen, the outdoor grounds at Zollverein and Duisburg-Nord Landscape Park, which is open around the clock. The grounds of the Hermannsdenkmal are free too; only the viewing platform charges.
Top picks are Phantasialand in Brühl, Cologne Zoo, the Chocolate Museum, the show mine at the German Mining Museum in Bochum and a ride on the Wuppertal Suspension Railway. Duisburg-Nord Landscape Park has a climbing garden and lots of space to explore.
Yes, especially for industrial heritage. Zollverein in Essen is a UNESCO site, the Oberhausen Gasometer is Europe's tallest exhibition hall, and at Duisburg-Nord you can climb a blast furnace. All three are reachable by train and streetcar.
Take S-Bahn line S19, which runs every 20 minutes and takes about 14 minutes to Cologne main station. The cathedral is a two-minute walk from there.