Puppetry and marionette exhibitions for children and adults are very popular in the Czech Republic. The puppet museum in Prague offers the largest collection in the world.
A marionette is a puppet controlled from above using wires or strings depending on regional variations.
The National Marionette Theatre in Prague is excellent and well worth to visit when you are in Prague. https://goo.gl/maps/2UZ7YwSU2b42
I really like marionettes. Did you visit the exhibition? Are there many children going to this exhibition? For how long is it going to be in the puppet museum in Prague?
By the way, I have redacted the website that you have shared, because it can be considered as spam, however you can share the Google Maps link of the museum instead.