On all holidays in May Fridericianum is open from 11 am–6 pm and offers public tours through Ulla Wiggen’s exhibition OUTSIDE/ INSIDE:
Wednesday, May 1 (Labor Day), 5–6 pm
Thursday, May 9 (Ascension Day), 3–4 pm
Monday, May 20 (Pentecost), 3–4 pm
Thursday, May 30 (Corpus Christi), 3–4 pm
The costs for the tours are included in the entrance fee. No registration required.