Two days: one Cologne night, one Rhineland day trip Two days is the smallest version of a Cologne-as-a-base trip: one night to land and settle, one full day trip to Brühl’s UNESCO palace. It nests into the 3-day version by adding Bonn, and the longer plans layer on Düsseldorf, Aachen, the Rhine and the Ruhr on top of that. If you’d rather spend both days on the Dom and the Altstadt instead of leaving town, the in-city 2-day itinerary covers that version.

Three days: Cologne, then two real Rhineland trips Three days doubles the day-trip half of a Cologne-as-a-base plan: a landing day, then Brühl’s palace and Bonn’s old capital back to back. It nests directly into the 2-day version by dropping Bonn, or the 4 , 5 , 6 and 7-day plans by adding Düsseldorf, Aachen, the Rhine and the Ruhr on top. For a Cologne-only 3 days, the in-city itinerary covers the Dom, the museums and the brauhaus circuit instead.

Four days: Cologne plus three Rhineland trips Four days rounds out the “close” trips: land in Cologne, then Brühl, Bonn and Düsseldorf back to back, all under 30 minutes out. It nests from the 3-day version by adding Düsseldorf, and into the 5 , 6 and 7-day plans by layering on Aachen, the Rhine and the Ruhr. For a Cologne-only 4 days instead, see the in-city itinerary . Book these before you go:

Five days: Cologne, three close trips and Aachen Five days adds Aachen, Charlemagne’s UNESCO cathedral, on top of the close trio of Brühl, Bonn and Düsseldorf. It nests from the 4-day version by adding this one day, and into the 6 and 7-day plans by layering on the Rhine and the Ruhr. For a Cologne-only 5 days, the in-city itinerary covers the museums and neighbourhoods instead. Book these before you go:

Six days: four close trips, then the Rhine’s long day Six days adds the Romantic Rhine, the hardest and priciest trip on this list, to the four closer stops. It nests from the 5-day version by adding this one long day, and into the 7-day version by adding the Ruhr. For a Cologne-only 6 days, see the in-city itinerary . Book these before you go: Cologne hotel near the Hauptbahnhof for the first five nights.

Seven days: a full week using Cologne as a Rhineland base Seven days covers all six day trips this family of itineraries builds toward: Brühl, Bonn, Düsseldorf, Aachen, the Romantic Rhine and the Ruhr’s Zollverein site, one per day after arrival. It nests from the 6-day version by adding the Ruhr; shorter plans at 2 , 3 , 4 and 5 days drop trips from the end of this same order.

Two days is enough to hit Cologne’s best free wins and its cheapest paid ones: the Dom’s south tower, the Altstadt, the Rhine promenade, and two proper Brauhaus sessions, all for roughly EUR 50-70 a day once you skip the Dom’s new EUR 12 sightseeing ticket and climb the tower instead. Longer in Cologne? See the 3-day , 5-day , and 7-day versions of this plan, or the Rhineland gateway guide if you want to add Bonn or Düsseldorf.

Three days lets you keep the 2-day route’s free wins, the Dom tower, the Altstadt, the Rhine promenade, and add one real museum day without blowing the budget. Expect roughly EUR 55-80 a day, Brauhaus rounds included. Shorter trip? See the 2-day plan . More time? Jump to 5 , 6 , or 7 days , or add Bonn and Düsseldorf with the Rhineland gateway guide . Book these before you go:

Four days lets you do both museum options from Day 3 instead of choosing one, plus a full day in Ehrenfeld, still roughly EUR 55-85 a day with the EUR 8 Dom tower and Brauhaus rounds included. Shorter trip? See 2 or 3 days . More time? Jump to 5 , 6 , or 7 days , or add Bonn and Düsseldorf with the Rhineland gateway guide . Book these before you go:

Five days adds the right-bank side of the river to the 4-day route, Deutz, the seasonal Seilbahn cable car, and Rheinpark, still averaging EUR 50-80 a day with the EUR 8 Dom tower and nightly Brauhaus rounds included. Shorter trip? See 2 , 3 , or 4 days . Want 6 or 7 days instead, or Bonn and Düsseldorf added on? See the Rhineland gateway guide . Book these before you go:

Six days adds a genuinely slow day to the 5-day route, a market morning, free window shopping, and a second pass through your favorite neighborhood, still averaging EUR 45-75 a day. By now you have used the EUR 8 Dom tower ticket and several Brauhaus rounds already. Shorter trip? See 2 through 5 days . Want 7 days , or Bonn and Düsseldorf added on? See the Rhineland gateway guide .

A full week in Cologne is honestly more city than most travelers need in one visit, the dossier’s own verdict is that Cologne itself is realistically a 1-2 day city, so this plan closes with a genuinely relaxed final day rather than inventing more sights. Expect EUR 40-70 a day by the end, with the EUR 8 Dom tower and nightly Brauhaus rounds already banked earlier in the week. Shorter trip?

Cologne is the Rhineland’s cheapest base, not its whole trip Cologne itself is a 1-2 day city; the in-city guide covers the Dom, the Altstadt and the brauhaus circuit properly. Once that’s done, Köln Hauptbahnhof turns into a hub for six cheap Rhineland day trips: Brühl’s UNESCO palace 15 minutes out, Bonn’s old capital and Beethoven’s birthplace at 20, Düsseldorf’s rival Altstadt at 21, Aachen’s UNESCO cathedral by ICE or a slower regional train, the Romantic Rhine’s castle stretch by KD cruise, and the Ruhr’s Zollverein coal mine.

Cologne is still one of the cheaper big cities in Germany to visit, but 2026 changed the math on its most famous freebie. Since 1 July 2026 the Kölner Dom charges EUR 12 (reduced EUR 6) just to sightsee inside during opening hours, ending centuries of free tourist entry. The real budget wins now sit outside the cathedral doors: the Rhine promenade, the Hohenzollern Bridge, the Rheinauhafen Crane Houses, and a Stange of Kölsch for around EUR 2.