People tend to check in during these times:
A great place to explore with children! Also an incredible gift shop!
141 is freaking ball sweat. Unreasonably hot and humid.
4th floor hallway is hella creepy
4th floor is creepy as hell at night
A wonderful place to take the kids to see the famous mammoth and other cool historical stuff.
There is a pretty sweet discovery center for kids in the basement!
Look past the mammoth in the room.