But It is usually not terrible, if you don't go to Kassel at documenta time. As the previous exhibitions have left intriguing traces - The full of Kassel is largely an open-air art park. Just two examples: Joseph Beuys' work "7000 Eichen - Stadtverwaldung statt Stadtverwaltung" (7000 Oaks - City Forestation as an alternative to Town Administration)