In a manner as demonstrative as the one with which they store and categorize other people's garbage, Köbberling and Kaltwasser build structures that are more or less sustaintable. One of the first of these is called "Fliegende Bauten" (flying building), a German legal term that is normally used to designate stalls, caravans, or other easily-movable structures.Cabins and gaily-handmade makeshift shelters have found a temporary place in a vast parking lot on the outskirts of the city of Munich, among highrise apartment buildings, prisons, stadiums, and urban highways.
