If you have a car, just go to the address. You will get to spend more time going through the place than you will with a tour, and I only benefit of tour is you do not have to drive. The cost to get in are only $25 per person and there's AAA discounts.
In new Orleans
I agree with James just drive there. With the discount its $20.
You can buy a tour on viator website. Or just go to the address and buy there.
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