Secrets have always fascinated mankind.
But why do we need them? How do you keep them secret? And how do you get hold of other people's secrets?
Until December 14, 2025, the interactive exhibition "Secret!" invites you to understand the mechanisms behind secrets, learn more about cryptography and test your own creativity. For adults and children aged 8 and over.
Info:
Until December 14, 2025 (closed September 1 to 30, 2025)
MAINS (Mathematics and Computer Science Station), Kurfürstenanlage 52, 69115 Heidelberg
Opening hours:
Thursday and Friday 3 to 6 pm
Saturday, Sunday and public holidays 1 to 6 p.m.
Guided tours of the MAINS take place at 15:00 during opening hours
Admission and guided tours free of charge
Registration not required
Guided tours for school classes and groups also outside opening hours.
Further information:
This content has been machine translated.