Cologne is the center of the Rhine-Ruhr metropolitan region, with its famous cathedral and the view over the Rhine being the main attractions for travelers. The city is also famous for its historic monuments, as well as for its carnival and other various events. The city's origins go back beyond the Roman conquest, and it is home to the Roman-Germanic Museum, built on the remains of a Roman villa next to the cathedral.
- The seven individual Christmas markets
- Cologne Chocolate Museum
- A cruise on the Rhine