The Museum Wiesbaden is an important museum in Wiesbaden. It is divided into two major sectors: the artistic and the scientific. The art collection dates back to the former collection of Johann Isaak von Gerning in Frankfurt. Through acquisitions, donations and loans, Museum Wiesbaden's art collection has become one of the most important in Germany. Within the artistic sector, the largest collection is that relating to the modern period. In fact, there are numerous works by German artists of the nineteenth century, such as the Düsseldorf School of Painting, represented by various works by the brothers Andreas Achenbach and Oswald Achenbach; the Deutschrömer, German artists who lived and worked in Rome, with works by Anselm Feuerbach (painting Nanna, 1861), Arnold Böcklin and Hans von Marées. There are also works by Karl Friedrich Lessing and Johann Wilhelm Schirmer. The museum also preserves a rich collection of works from the period of Symbolism and Art Nouveau, the Jugendstil and the Austrian Secession, including 12 works by Ferdinand Von Stuck, a work by Alfons Mucha and Gustave Moreau. Many of these works were presented for the first time at the legendary Universal Exhibition in Paris in 1900. Then stand out the works of the Russian artist Alexej von Jawlensky, who spent the last twenty years of his life in Wiesbaden: with 57 paintings and 35 graphics , the museum has one of the largest collections of the artist. As for the scientific sector, the Museum Wiesbaden preserves a rich collection of geology, mineralogy and botany.