- https://www.timeout.com/chicago/news/brownies-were-invented-in-chicago-and-now-you-can-whip-up-the-original-recipe-at-home-042320#:~:text=Photograph%3A%20Shuttertsock-,Brownies%20were%20invented%20in%20Chicago%2C%20and%20now%20you%20can%20whip,Exposition%20World's%20Fair%20in%201893.&text=The%20story%20of%20the%20chocolatey,the%20heart%20of%20the%20Loop.
- https://study.com/academy/lesson/chicago-music-history.html
- https://theskydeck.com/the-tower/past-future/
- https://www.fieldmuseum.org/about
- https://www.chicagobotanic.org/info
- https://en.wikipedia.org/wiki/File:Eddy-Clearwater_Chgo-BluesFest2008.jpg
- https://www.flickr.com/photos/theeerin/5071272481
- https://www.flickr.com/photos/jeffreyww/4448807631
- https://commons.wikimedia.org/wiki/File:Bristol_Farms_Chicago_Deep_Dish_meat_pizza.JPG
- https://commons.wikimedia.org/wiki/File:Willis_Tower_From_Lake.jpg
- https://commons.wikimedia.org/wiki/File:Chicago_Field_Museum.jpg
