Dyeing the Chicago River Green, St. Patrick's Day
Chicago is going green for St. Patrick's Day as city workers turned the Chicago River an unnatural shade in its honor.
After the dye, attention turned to the city's annual St. Patrick's Day parade.
For some, the festivities are less about a party, and more about celebrating Chicago's large Irish community.
For the past 43 years, workers from Chicago's plumber's union have dumped about 40 lbs of dye into the river.
The due itself is orange, but after sitting in the water for a few minutes, it turns the river a perfect shade of green.
Saint Patrick's Day is Mar. 17 and falls on a Thursday this year.