Yes, most of them do. Hanukkah is a religious holiday with special prayers and Torah-readings, but most non-religious Jews celebrate Hanukkah too.
Reform (Least Religious) Conservative (More Religious) Orthodox (Most Religious)
In the 1920s Berlin had a Jewish population (in the sense of religious Jews) of about 140,000 which was about a quarter of Germany's Jews. Obviously, if you include people of Jewish origin you get a higher figure.The German-speaking city with the largest Jewish population was, however, Vienna (the capital of Austria).
The Jews suffered the most.
The most religious city in the world (in terms of religious diversity) is Jerusalem. It has played a part in the three major religions. Christians, Muslims and Jews all at one stage in history laid claim to and controlled Jerusalem. Today it is a major center for religious freedoms. However, the most religious city in the world (in terms of demographics) is Mecca. While not too far from Israel, it is very clear why Mecca is the most religious city. 1 in 4 humans is Muslim. Imagine thousands to millions of people praying to the Kabba (in Mecca) all at the same time, in the same place! (Think about it.)
Some do, most do not. As with most physical things in a typical religious group, Jews are physically diverse.
Jerusalem
Is The Dome of the Rock a religious holy site for Christians,Muslims ,or Jews
Yes, religious Jews do.
No, Torah-observant Jews do not.
The majority are Muslims followed by Christians followed by Jews.
Jews, no question. The haulocast was some pretty serious stuff.