I've really enjoyed visiting these museums in the Czech Republic with my 10-year-old kid π
Museum of Fantastic Illusions:
https://muzeumfantastickychiluzi.cz/en/
Museum of Senses:
https://museumofsenses.cz/en
And seeing the largest private Lego collection in the world at the Museum of Bricks was absolutely amazing:
https://museumofbricks.cz/en
For getting around in the Czech Republic, check out this Ultimate Guide:
https://gowithguide.com/blog/tourism-in-czech-republic-statistics-2023-the-ultimate-guide-5565
Hope you and your kid have a blast checking out these family-friendly museums! π