This museum is big but I find that a bit hard to n...

This museum is big but I find that a bit hard to navigate. I used their iPhone app to find my way on each floor. It appears that LL, level 1 & 2 all have entrances and ticket sales and museum shops. It's a bit confusing for someone who came up from LL to see another ticket sales booth and to accidentally exited the museum.

Other than the layout, the exhibitions are very good, especially the ones about the universe. I find the animal exhibitions just okay apart from their giant structures. They look like they could use some updating.

I used my corporate membership (which you have to get from another booth rather than the ticket sales) but you don't have to pay the full suggested price. I don't think $25 is the right amount you should pay when you arrive there at 3pm or when you can only spend an hour or two there.