The artist group Observatorium, founded 1997 by Geert van de Camp, Andre Dekker and Ruud Reutelingsperger in Rotterdam, creates sculptures to give new meaning and provoke new use in environments that are in transit. Waste lands, urban wilderness and suburbia is where artists and the owners of the site introduce an investigative and pioneering use of the public realm, using sculpture, (landscape) architecture and participatory place making.