The Park Grill is the only full-service restaurant included in the multibillion-dollar Millennium Park project in Chicago, Illinois. Its outdoor seating area is the largest al fresco dining area in Chicago. It has placed among the leaders in citywide best-of competitions for best burger and is widely praised for its views. The exclusive location, the lucrative contract terms, the investor list, and a close personal relationship between a managing partner of the restaurant and the Chicago Park District's project manager led to a formal ethics investigation, court litigation, and extensive press coverage, and ranked among the most prominent scandals of the administration of Chicago Mayor Richard M. Daley in 2005. The more than 80 investors include some of Daley's friends and neighbors. One of the most financially successful restaurants in Chicago, the Park Grill remains exempt from property taxes after a multi-year litigation which reached the Illinois Supreme Court.