SHEDD AQUARIUM!!

Shedd Aquarium in Chicago, is without a doubt the coolest aquarium in the world, not only the fish are nice and interesting, but the location and the view from the place are jus AMAZING. From the dolphins show you see the lake and on the back a GREAT panoramic view of the city and almost all the big tanks (dolphins, sharks, whales) you can see them from the bottom as well.
Going there was a really cool experience!!