You can buy tickets on your visiting day or you can walk in after 1.30pm
We reserved our tickets 2 months in advance. It's always jam packed here especially during warmer weather. Fyi... It's a huge museum so u might not view it all in 1 day.
You buy it in advance or buy it The same day but you got to get up at 6:30 am
It's better to go at 2pm, Monday through Friday, because it's open entry
We did not have reservations and only waited about 15 minutes to get into the exhibit.
Entrance is free to everyone. Unless you want to take a tour (even some of those are free) or watch a movie. But to go in and view the exhibits is free.
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