Old Chicago was a combination shopping mall and indoor amusement park that existed in the Chicago suburb of Bolingbrook, Illinois, from 1975 until 1980. It was billed as "The world's first indoor amusement park", and it was intended to draw visitors all year round, rain or shine. It opened to great fanfare and over 15,000 visitors on June 17, 1975, with an enormous building that housed major rides, such as two roller coasters and a Ferris wheel, as well as a turn-of-the-century themed shopping mall. However, only six months after opening, the complex ran into financial troubles due to construction cost overruns. The opening of a competing amusement park in the same general region (known today as Six Flags Great America) hurt attendance, and the lack of large anchor stores failed to draw enough local and repeat shoppers. Despite management changes, the center continued to lose money. By 1978, the mall began closing on Mondays and Tuesdays and in early 1980 the entire amusement park shut down and the rides were sold, only five years after opening. Efforts to find alternative uses for the huge building failed, and the structure was demolished in the spring of 1986.