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West End theater workers and performers dance in front of the Olympic countdown clock to mark the 100-day countdown, in Trafalgar Square, central London, Wednesday, April 18, 2012. With 100 days to go until the 2012 London Olympics, the city's theater community is increasingly confident that culture won't suffer during a summer devoted to celebrating sport. (AP Photo/PA, John Stillwell) UNITED KINGDOM OUT, NO SALES, NO ARCHIVE

100 days to Olympics

Festivities around the world on Apr. 18 marked the 100-day countdown to the opening ceremony of the London 2012 Olympic Games.