Six floors of exhibits--outstanding! Loved the exhibit of the photos of the year, the Berlin Wall display, the infamous criminals exhibit, Hurricane Katrina exhibit, and the 9-11 exhibit! Because we spent so much time looking at these exhibits, we had to rush through some of the other exhibits so we could fit in other sites on our vacation. Right now, they are offering a special of up to 10 children under the age of 18 at no charge with a paying adult. Advice: take the orientation tour which will take you on an overview tour of all the exhibits, then go back and spend the most time at the exhibits that are most interesting to you.