Free museum passes to children's museums
North Castle Public Library operates two branches in Armonk and North White Plains with collections for adults and youth, plus access to museum passes for regional institutions including children's museums, science centers, and nature preserves.
Free
Children's Room at the Armonk branch closes at 5:30 PM on weekdays, so plan afternoon visits accordingly.
Museum passes let you check out admission for major institutions like the Children's Museum of Manhattan and Westchester Children's Museum.