Yes, it's about $22. You can check on Groupon too if they have any deals going. The Alice in wonderland exhibit is really cool. https://atlantabg.org/tickets/
There is a ticket cost. It is around $22.00 their prices vary based on ages. Children are priced differently. As the previous commenter stated there are groupon options too. I reccomend going during an event it makes the trip worth it. Recently they had a Cocktails in the Garden event. Very fun
Thanks! Your answer is awaiting moderation.