Hmmm.  I actually thought the exhibits were neat and my kids mostly enjoyed it but it was too freaking crowded.  Someone mentioned dangerous and that is right!  I have two boys ages 3 and 22 months and they both got trampled.  If parents and school chaperones (ESPECIALLY them) would keep a closer eye on their kids there would be no problems.  Honestly it pisses me off when parents or chaperones sit there and text or talk while their kid is trampling over a smaller kid.  This place is WAY overpriced.  We went because we had a culture pass but I definitely won't pay the full price and it seems like discount coupons are a rarity.