you cannot possibly see everything in this place in one visit. it is just too much! too much great stuff. we spent an hour in africa alone, before we realized we had 5 other enormous exhibits to go! after a while, you can only absorb so much, so it's best to break this place up into several visits or have a plan of what to see if your're pressed for time.
there is also an interactive room where you can make as much music (or noise) as you like. a cafe/restaurant is on the lower level to get re-fueled.
it's hard to believe how much is in this place. and how advanced it is...with the personalized self-guided tour, you can learn so much.
it's great for kids, but even better for adults. so much fun!