Just a bit of advice - The Hall of Presidents pre-show area is a great place to cool off, but there are no strollers allowed inside the building. We tried to use it as a napping place when my son was 18 months old, but taking him out of the June sun, out of his stroller, into the cool air refreshed him so much he wouldn't think about napping. And there in no where to nap, because the pictures of presidents are all over the walls, so even camping out at a space near a wall means people will be walking over you to see the exhibits. But the AC feels good, so going inside is a nice thing. I didn't try going into the show area itself, because I asked if we could stay more than one sow and was told no, so i didn't want to be carrying a sleeping (hopefuly) boy out into the bright sun afer a short reprieve.