At the foot of St. Stephen’s Cathedral in Vienna, young dancers in Dirndl and Lederhosen perform a traditional Austrian folk dance on the cobblestones of Stephansplatz. Tourists and locals form a dense ring around them. A small girl in a pink jacket watches from the crowd. The Gothic spire rises behind them, eight centuries old, unmoved. This is a scene that repeats across Europe — staged, yes, but not hollow. The staging is precisely the point.