One of the unsung cathedrals of Germany, in my opinion. The gargoyles are wonderful and the view from the top is spectacular. Or you could just stay on the ground in one of the nearby cafes on the square, admiring the view.

Because of the soft sandstone, the Münster requires constant upkeep which is provided by the Münsterbauhütte. You can join their verein if you like and contribute to the upkeep.