Every year Chicago dyes the Chicago River green in celebration of St. Patrick's Day. See how they do it in this step-by-step photo tour.
The Chicago River shines an emerald green just in time for the kick-off of the Downtown St. Patrick's Day Parade. The white of the Wrigley Building serves as the perfect contrast. Note the Trump Tower to the left of the Wrigley Building looks like its construction is complete from this view. Learn more about the history of this Chicago tradition, where and when it takes place, and what environmentalists have to say about it.
Related: Chicago St. Patrick's Day - Events, Traditions, History | Downtown St. Patrick's Day Parade