Vienna combines drama and elegance like no other. For centuries the heart of the Austro-Hungarian Empire, the stately city on the Danube, has been defined by vast palaces and imperial grandeur--but behind the Baroque opulence, Vienna is also a place of genteel coffee house culture, epicurean tradition, and a heritage of both delicate and daring music, art, and design, from Johann Strauss to Egon Schiele, from Gustav Mahler to Josef Hoffmann. This...