| Tuesday – Sunday | 11 a.m. – 6 p.m. (last admission: 5 p.m.) |
| Monday | closed (except on public holidays and during school holidays in North Rhine-Westphalia) |
| Public holiday | open (except for: 24, 25, 31 December & 1 January) |
School classes and larger groups are asked to pre-register by telephone on +49 201 301040.