At the Wissens°raum science workshop, visitors can experiment, tinker and build for themselves, from vehicles and marble runs to square soap bubbles and microscope discoveries. The activities change on the day. In October, the drop-in workshop opens on the 9th, 10th, 16th, 17th, 23rd, 24th, 30th and 31st, each day from 3 to 6 pm. Admission is free and individual visitors do not need to register. It is suitable from age eight; younger children need an accompanying adult. Groups of six or more should register in advance.