Walk through the former Jewish and the Greek district, past Vienna's oldest "Beisl" (restaurant) to the wonderful Heiligenkreuzerhof, in which some Roman constructions are still preserved. See narrow streets, old craft workshops, and other historical buildings.  Listen to fascinating stories about the old university, and tales of those who studied there. Learn about the history of musicians associated with the city such as Schumann, Haydn, and Schubert.  Finally, admire the old university church with its brown-golden marble splendor. This magnificent building - together with the Jesuit theater and the university - was once supposed to impress protestants and make them return to the Catholic Church. The Jesuits, who were called to Vienna by the Hapsburg family, stayed influential until they were banned by Maria Theresia in 1772. Today they are responsible for the church once again.