The prophets: Abraham, Isaac, Jacob, Moses, Joshua, Samuel, Isaiah, etc.
see the attached Related Link.
The Sabbath (Saturday) and Yom Kippur; and to a slightly lesser degree, the festivals.
The Middle East, in particular the city of Jerusalem in Israel has holy sites for all 3 of those religions.
Judaism does not have a Holy Temple. It was destroyed in the year 70 by the Romans. In Jewish writings of today, it is simply referred to as the Temple in Jerusalem, the Holy Temple, or Beit Ha-Mikdash (Hebrew for house of holiness).
The western wall is the most holy thing for the Jews ( and even for some chrostens because the western wall is a part of the Jewish temple ) . Because the western wall Jerusalem is holy for the Jews, this is the most holy city for the Jews .
Jerusalem
Rabbis and cantors
Israel
Of course not.
The is no such thing as a "judaism".
All people possess free-will. They have vast emotions and potential which can and should be used in the right contexts.
Jews worship in synagogues.