Dasparkhotel rooms are made of robust drain pipes.
The external simplicity surrounds an unexpected comfortable interior with a double bed, storage, light, wooly blanket and cotton sleeping bag.
All other hotelery devices (toilets, showers, minibar, cafe, etc.) are supplied by the surrounding public space.
A night in the dasparkhotel costs just as much as you can afford or want to pay. They work with the “pay as you wish” system.