The best representation of Illinois
In affiliation with the Lincoln Park Zoo, there is a barn set up across from the South Pond/boardwalk in Lincoln Park. So if you are in the area and think you are hearing mooing, don't worry. You're not imagining anything.
The farm is complete with a dairy center, goats, bunnies, pigs, and ponies. If you are from any major metropolis or urban areas in the rest of the world, this will be the best representation of Illinois by far. Illinois is mostly farm lands and rural settings. This gives great insight into what most of America is like.
It's also extremely education for kids