Wieliczka - is known around the world with unique old salt mine, which is visited by large numbers of tourists. It is also an important link in the agglomeration of Krakow noclegowym.

Bydgoszcz - is a large urban area, which lies in the mighty forest complex called Forest Bydgoszcz is a very important center of economic, scientific and cultural Kujawy.

Poznań - is a very important economic center, economic, scientific and cultural Wielkopolski. It is the center of a well-developed infrastructure, which is strongly linked with the adjacent municipalities creates agglomeration.