The United Nations decided that January 27, the day on which Auschwitz was liberated, should be the International Day in memory of the victims of the Holocaust.
Israel has its own day, in the spring, to remember the Shoah.
This is Beer Sheva's memorial square "to remember the victims of the Holocaust."
The four words written in Hebrew are from the Book of Esther 9:28 and mean
"Their memory will not fade from their descendants"
or in a different translation,
"The memorial of them should not perish from their seed."