On behalf of the state capital of Düsseldorf, RED provides conservation and restoration services for the city's museums, exhibition centres and archives. These collections include the Kunstpalast, the Stadtmuseum, the Film Museum, the Hofgartenhaus Theatre Museum, the Heinrich Heine Institute, the Goethemuseum, the Hetjensmuseum, the SchifffahrtMuseum, the Aquazoo Löbbecke Museum, the Mahn- und Gedenkstätte, the City Archive and the Benrath Palace and Park Foundation. In total, the RED is responsible for over 3.5 million objects from 3,000 years of art and cultural history.