Backdropped by the iconic clock tower in the Houses of Parliament, containing Big Ben, a Soviet Union flag is seen as demonstrators gather at central London's Trafalgar square following the May Day ... more 
Backdropped by the iconic clock tower in the Houses of Parliament, containing Big Ben, a Soviet Union flag is seen as demonstrators gather at central London's Trafalgar square following the May Day march, Sunday, May 1, 2011. Thousands of workers marched through the centre of the capital Sunday for a rally to mark May Day and a series of speakers denounced Government cuts and called for a fightback against them. Organisers put numbers for the event at 10,000, however the Metropolitan Police at Scotland Yard did not give a figure. less 
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Associated Press | Photo By Lefteris Pitarakis
Sun, May 1, 2011 1:19 PM EDT