CHICAGO, ILLINOIS – MARCH 13: An aerial picture shot with a drone shows the Chicago River as it flows through downtown after it was dyed green in celebration of St. Patrick’s Day on March 13 ...

In recent years, the Chicago River itself has undergone a renaissance, from a lifeless industrial waterway into a vibrant ...

One longstanding ceremony is the dyeing of the Chicago River, when artificial coloring is used to turn the water an emerald green during the week leading up to St. Patrick's Day. The event is a ...