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Opening waltz at Opera Ball in Vienna

Herwig Prammer / Reuters

Two hundred and eighty-eight dancers of the opening committee dance the opening waltz at the traditional Opera Ball in Vienna February 7, 2013. Some 5,000 visitors enjoy one of Austria's most glittering social events, paying 250 euros ($335) for entry tickets and up to 18,500 euros ($24,800) for compartments.

Herwig Prammer / Reuters