Karl Ernst Osthaus founded the Folkwang Museum in 1902 in this purpose-designed building by Henry van de Velde — the first museum of modern art in Germany, opening when most German galleries still considered the Impressionists too radical. After Osthaus died, most of the original collection went to Essen, where it remains the core of the Museum Folkwang there. What stayed in Hagen, and what has been acquired since, makes for a still-formidable museum.
The collection includes Matisse, Cézanne, Gauguin, Kandinsky, Macke, and a strong group of German Expressionists. Even more important is the van de Velde building itself: the interior architecture, the lighting, the furniture, the wall colours are all an integrated Jugendstil work of art. Allow at least an hour and a half. Closed Mondays.