I could not get this to link, but it would be well worth your time to take a few seconds to do the following: Go onto Youtube's website, and in the search box, enter Anne Frank: the only existing film images. It will bring up a short video taken in July 1941 of Anne Frank's neighbor leaving her apartment building with her new husband (they just got married). Nine seconds into the film, Anne Frank can be clearly seen leaning out of the upstairs window (where she lived) to watch.
It is my understanding that this film (taken after the Nazi invasion of the Netherlands, but a year before the family went into hiding) was given to her father and ended up in the possession of a Dutch museum which decided to post this on Youtube for everyone to watch. It's very sad because in the couple of seconds she can be seen, she looks like a normal, young teenaged girl happy to be watching her newly married neighbor---but we all know what happened to the family soon thereafter.
I hope the world NEVER forgets what happened to Anne Frank. Every one of us should praise God every day that we are free to live and worship as we choose, but we should never take that freedom for granted.
(The Anne Frank House website (annefrank.org) also has this video available to view.)