The big box store shopping area is in an industrial area on the west side of Kaiserslautern. I saw a very bad placement of two very different stores when I was visiting Tschibo (a store I still don't entirely understand...it's a coffee shop, but it sells a strange assortment of clothes wrapped in cellophane, etc.).
Below is a picture of the FAIL in store proximity placement. Kinderland means "children land" and the Rofu chain sells children's toys. The store next to it...well, I think that one can guess the kind of things it contains. Yes, Germany (and Europe!) is a LOT more liberal about this kind of thing, but it's still a very, very odd placement.