Together with Energie und Wasser Potsdam (EWP), ad modum has designed and realized a record-breaking campaign: With the help of all Potsdamer*innen the biggest digital hidden object of Potsdam shall be created. The hidden object is part of the EWP "Hallo Nachbar-Tour" series of events: Potsdammers can have themselves drawn by an illustrator at one of these live events and decide on the spot where they want to appear in the hidden object. In addition to the idea and concept, ad modum also realized the digital implementation and advises EWP on the implementation of the events.