The Need To Knows Before booking
The Nijntje Museum is very popular so I would advise booking in advance as it can fill up very fast. The museum itself is more of a children's playground so if you're interested in going then I would advise booking in a slot for after 3pm.
Confira meu guia para as melhores coisas gratuitas para fazer, bem como itinerários e dicas de viagem para tornar sua viagem inesquecível.