Viennese of at least middle class may visit a number of balls in their lifetime.[clarification needed] Color lithograph of Vienna, 1900 During the latter half of the 19th century, Vienna developed what had previously been the bastions and glacis into the Ringstraße, a new boulevard surrounding the historical town and https://wien-info01334.pointblog.net/nicht-bekannt-fragen-Über-wien-info-62876191