This is the worlds largest underwater aquarium and is located in the Mall of America. This aquarium has got great looks with creatures like sharks and other marine creatures going all over you. It would not take more than 30 mins to complete the whole tour and it is a little expensive if you going to get the ticket at regular price. They distribute coupons just outside the aquarium which would save you a few bucks. It's a very difference experience going through that tube and see those colorful creatures. There is a lot of stuff to learn for children and experience.