Dasparkhotel has a business model other hotels would avoid like the plague, but letting guests stay in drainage pipes seems to work for Daspark. To be fair, it is not exactly the way it sounds; the drain pipes have been converted and sit in a city park. The hotel is a concept from Andreas Strauss. Currently, there are two hotels, one in near Essen, Germany, and another in Ottensheim, Austria.
Contrary to what may be the first impression of this project, the hotels provide basic accessories and comforts full headroom, double bed, storage, light, power, woolly blanket and light cotton sleeping bag. For other comforts like a cafe, shower and toilet, the guests have to depend upon facilities offered by the surrounding public space.