Information for visitors Please note that there are some restrictions due to th coronavirus. Find more information here. Opening hours (changed due to coronavirus restrictions) exhibition and garden Mon.-Sun., 10 a.m. - 4 p.m. last admittance 3.45 p.m. free entrance public guided tours for individual visitors (in German) currently no guided tours due to coronavirus restrictions guided tours and seminars for groups (10 persons up) currently no guided tours due to coronavirus restrictions reservation required, more information here. Joseph Wulf Library: Mon.-Fri., 11 a.m. - 4 p.m. last admittance 3.45 p.m. public reference library The library is free of charge. closing days: Saturdays and Sundays March 8 Good Friday May 1 Ascension Day October 3 December 24-26 December 31 January 1 Admission The admission is free of charge. The exhibitions in the house and in the garden are barrier-free. Some parts of the garden are not accessible for wheelchairs. The educational department offers guided tours and seminars. Reservation in advance is required - see here for more information. The educational programs are free of charge for school groups, apprentices and students. Adults pay 3 Euro per person. We ask groups larger than 10 personen to register in our office in advance as early as possible: office(at)ghwk.de or +49 30 80 50 01 0. The office is not occupied on Saturday and Sunday.