There are a couple different tours which last from 1 hour to 2.25 hours. You are not allowed to wander the house on your own but can stay in the public areas & gift shop as long as you wish during their normal operating hours. Prices range from $17- $49
You can wander the grounds all you want. The tour is about an hour. Cost is answered in another.
It's $39 for adults & $20 for kids, it's about 1hr long.
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