Art, music, literature, and science in Vienna at the turn of the last century presented a series of wrenching dualities: reality and illusion, sexuality and death, the external world and the internal self. Celebrated art historian Alessandra Comini explores in a lively, authoritative text the demonic origins of the 1000-year-old Habsburg Empire, easternmost outpost of Christendom against the dreaded Ottoman Turks. Escape from death encouraged a...