The Crown Fountain is an interactive work of public art , named in honor of Chicago's Crown family  and it opened in July 2004. The fountain is composed of a black granite reflecting pool placed between a pair of transparent glass brick towers. The towers are 50 feet (15.2 m) tall, and use light-emitting diodes behind the bricks to display digital videos on their inward faces. 

The two towers spouts  through a nozzle on each tower's front face. To achieve the effect in which water appears to be flowing from subjects' mouths, each video has a segment where the subject's lips are puckered, which is then timed to correspond to the spouting water, reminiscent of gargoyle fountains; this happens roughly every five minutes. The park and fountain are open to the public.