The synagogue (on the right) and its adjacent women’s prayer room are towering remains. The synagogue opened on the Jewish New Year in September 1104. It is considered the earliest preserved example of a synagogue of this design. This Romanesque hall became influential in Ashkenaz (Jewish Term for west-, middle- and east parts of Europe) for centuries. The building, partially conserved, is the best-preserved synagogue from the early 12th century in Europe.