What makes Münster tolerable is the great access it offers to so many European cities. Düsseldorf and Köln (Cologne) are two very nice cities in Germany. Cologne is the largest city in this region of Germany, and it is by far the most fun to visit for a weekend because one can go to many museums, walk along the river, have great food, listen to great, cutting-edge music, and drink until morning every night. The proximity to Cologne has helped a great deal in preserving my sanity.
The biggest highlight of the city is the famous cathedral (the Dom). It is massive, gigantic and detailed beyond description. Click here for the pictures. Cologne need not be your primary destination in Germany, but it is such a nice place to visit and live.