I think everyone will find something interesting here. One day is not enough to go around all the floors.
There is also a restaurant and a shop inside
We went for free (once a month, Cologne residents are given the opportunity to visit museums for free)
I don't understand who's writing about history here. It's a complete lie. The Museum of Modern Impressionism. To be honest, it's for an amateur... very specific...It didn't go well for me. Storing things in cells. After buying a ticket (like 11 euros), you need to take a plastic card from the administrator (with its help you close and open the cell). There is a restaurant on site.