The “cube” made of glass has been the pride and joy of the Stuttgart art scene since it opened in 2005. The “Metropolis” triptych by Otto Dix from the 1920s alone is makes a visit to the museum worth your while. The collection extends over a former underground tunnel system and up to several floors. Adolf Hölzel and Otto Dix are the main focus of the collection as artists, in addition to regularly changing exhibitions. In addition to contemporary art, visitors can see Swabian Impressionism of the 19th century, works of Classical Modernism, and Post-War Art. In summer, art lovers sit in front of the museum with coffee on the sunny terrace. The bar on the ground floor of the museum building is also open in the evening. By the way, the trip with the glass elevator to the top floor is an experience; There, you land in the restaurant with spectacular views over Stuttgart. The castle square shines particularly beautifully before the eyes of the spectators, especially at night when it is illuminated.