Portal:Chicago/Did you know/5

...that 141 West Jackson Boulevard, Chicago, Illinois, the address of the Chicago Board of Trade Building (pictured), has been the address of two different buildings that at one point was the tallest building in Chicago?
...that William W. Powers State Recreation Area's Wolf Lake co-hosted a BioBlitz by over 150 scientists who unofficially counted 1,815 species in a day?
...that after the Great Chicago Fire of 1871, the population of the neighboring Hyde Park Township exceeded that of the devastated city of Chicago?
...that all four deaths in the thirty annual Chicago Marathons have occurred in the last ten years?

Source

Wikipedia:Recent additions 122, Chicago Board of Trade Building archived from appearance on Main Page
Wikipedia:Recent additions 155, William W. Powers State Recreation Area archived from appearance on Main Page
Wikipedia:Recent additions 156, Hyde Park Township archived from appearance on Main Page
Wikipedia:Recent additions 158, Chicago Marathon archived from appearance on Main Page