The series Landmarks is a conceptual documentation of architectural art objects on mining dumps. The mining activities of the coal and steel industry in the Ruhr area have left behind more than 250 spoil heaps of slag and rubble. Through renaturation and the erection of art installations, some of these heaps have been converted into destinations for excursions. The vantage points represent the new Ruhr area, are very popular with visitors and have already been photographed a thousand times. This photo series is intended to provide a different, less familiar perspective on the locations. For this reason, the installations have been staged as mysterious objects in the landscape, empty of people and allowing different interpretations: Technoid sculptures, giant toys, architectural models or carefree points of longing in the man-made landscape. The series is part of the "Revier" project on the effects of industrial structural change on the built environment and urban landscape in the Ruhr area.