Chicago River Dyed Green In St. Patrick's Day Tradition
CHICAGO, IL - MARCH 16: Workers dye the Chicago River green to kick off the city's St. Patrick's day celebration on March 16, 2013 in Chicago, Illinois. The dying of the river has been a tradition in the city for 43 years. (Photo by Scott Olson/Getty Images)
St. Patrick's Day 2013
St. Patrick's Day is celebrated around the world, and even in space this year, on March 17.