Dedicate your sixth day to exploring Hamburg's rich cultural scene. Start with a visit to the Kunsthalle Hamburg, one of Germany's most important art museums, housing an impressive collection of European paintings and sculptures. Explore the Deichtorhallen, a contemporary art center showcasing modern and contemporary art exhibitions. If you're interested in history, visit the Hamburg Museum to learn about the city's past. In the evening, catch a performance at the State Opera House or enjoy a classical concert at one of the city's concert halls.