The museum exhibits the works of Kete Kolwitz, a German artist, graphic artist and sculptor, one of the most striking expressionist figures of the early 20th century. Self-portrait of Kethe Kollwitz Museum Käthe Kollwitz Museum is located on the top floor of the Neumarkt Passage shopping center. It contains the largest collection of gloomy, but very emotional drawings, prints, posters and sculptures of Kolwitz.