In the baroque Schloß Benrath you will find:
The Museum für Europäische Gartenkunst, which is very good, and the Museum für Naturkunde. The park is beautiful.
You go by S-Bahn from Düsseldorf Central Station to Benrath, where you will find signs to tell where to find the Schloß and the park, it is not far from the station. It is open Tuesday to Sunday 10.00 a.m. - 18.00 p.m., Monday it is closed.
no street name Dusseldorf Nordrhein-Westfalen Germany