The Shedd Aquarium is a national treasure. If your in Chicago it is a must see and if you have kids be sure to bring them. In my opinion the best feature is the large tank in the rotunda, there are so many varieties of fish all together, I could sit and watch that for hours on end. They also have a special exhibit on sharks in the basement that I would not reccomend. I had to pay extra and wait in line and the 'sharks' were small and hard to see. Unless your really into sharks I'd skip this. Of course there are many different tanks with fish from all over the world and they have a dolphin show as well. It is located downtown so there are lots of other things to do and places to eat near by.
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