I tend to reserve my 5 star recommendations, but i...

I tend to reserve my 5 star recommendations, but it's hard to beat a free zoo with great diversity of animals, environments and interaction. And it's free and part of a beautiful public park. Everything from the lions to the monkeys to the pink flamingos; this place is great. There is a mix of outdoor and indoor exhibits but it is primarily outdoor, so be prepared for the elements. If you are in Chicago though, it's a must see.