No. But they have tours at specific times. You need to be there couple minutes earlier
And if you purchase tickets (and make a reservation) through the museum website, you can get a discount.
No, you don't need reservations.
Get a discount for tickets from Groupon
For larger groups you may need a reservation so they can make sure you all get on the same tour. The employees were very helpful when I visited. I'm sure they can help you out too!!
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