Potatoes play a major role in german cuisine, a fact that you can also observe through architecture by looking at old houses or farms in Germany: The "Kartoffel

Potatoes play a major role in german cuisine, a fact that you can also observe through architecture by looking at old houses or farms in Germany: The "Kartoffelkeller" (="potato cellar") is a common storage room under a house with no windows/light, for long term storage of potatoes after the harvest. Often there would be slides under trapdoors to be accesible from outside the house, so you can fill the cellar with the potato harvest right from the tractor. People would get their basements filled to have enough potatoes to make it through the winter. Another cultural fact: "Kartoffelferien" (="potato holidays") are still used by some elderly to describe the school holidays around october, because children needed to help with the potato harvest around that time.