Their site says $8.50 1-64 years old, under 1 is free. Annual membership is around $80 and well worth it especially during winter when they're still too young for playing outside!
John, do you plan on going to take the kids a bit? I love it. It is 2 stories of fun for hours. And worth every bit to check out whenever your willing. So much to do. They even have classes for different age groups. Its so great. I take my kids probably 2x a month. This being said that 100% pays for me and my 2 kids for the year to have a membership!
I'm not sure I'd call a "one year old" an adult... That said, the Meuseun is a great place for kids and I'd echo the recommendation of a membership.
Do the annual membership pays for itself.
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