Kwidzyn Castle maybe is not the most famous polish castle but it is definitely special. Kwidzyn has the biggest medieval latrine in Europe, or maybe in the whole World, called “gdanisko”.
Latrine is connected to the castle with the 54 meters long hall. Now imagine, you weak up in the middle of the cold, winter medieval night and you really, really very quickly need to go to the toilet.
The tower is 25 meters high.
…and if you want, you can look on it more closely here