$25 adults (12 plus) $20 children (3 to 11) and $21 for seniors (60 plus)
Most libraries have discount tickets to the museums! I think there is a free or discounted night as well!
In addition to entry fee, there are tickets for planetarium, imax etc for $6 per head.
$29 for adults, $25 for seniors, $24 for children. Free for children under 3 years old.
Also, if you are a recipient of Snap benefits there is a discounted rate on up to a family of four I believe.
$90 to $120 for membership. I got the 120 and it was well worth it I would renew it next year as well
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