It's free to just go in and walk around, but if you want a tour then there is a fee
There is a donation box so u can put on what you want
It's free, walk around and read some of the history!
Google has tons of info for planning. Special events etc change up schedules or last year construction etc...
There are a lot of events going on so don't assume you can just walk in during the day and be able to go in. Many times its not a problem to just walk in and look around.
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