KOHANIM CAUTION!!! There are the ashes of Yidden in The Hall of Remembrance. Speak to your Rabbi if it is ok to go to Yad Vashem.
(my videos from this travel)
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I don't know how to rank a Holocaust Museum. Additionally, there are also many holy objects in Yad Vashem, where you can see how the Nazis tried to annihilate not just the Jewish Body, but also the Jewish Soul.