May0060348 . Daily Telegraph<br /> <br /> Debutantes lined up on the dance floor for the opening of the Vienna Opera Ball, an annual Austrian society event which started in 1935 but was suspended during WWII .<br /> Tickets to the ball start at &euro;270 and a box in the Opera House costs more than &euro;20,000.<br /> It is one of the most exclusive events in the Viennese social calendar and is always kicked off with 186 debutantes and their partners dancing the opening waltz but also attracts celebrities from across the globe .<br /> <br /> Vienna 12 Feb 2015
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