Holocaust museums are a scary place for children. I remember as a kid once being taken to one for a school trip. As soon as you walk in, ominous music plays and the lights are dim, like a haunted house. Then they tour you through the halls showing mutilated people, the starving skinny people, and tell you halloween stories about lampshades and Mengele's experiments.
It's no wonder these kids grow up to be fanatical believers in the Jewish urban legend, an experience like that tends to stay with you.