For all of you who live in the Newark/WIlmington area, the University of DE is a great place to take your children for ongoing cultural activites that many times are free to the public. The University is a good place to take your children when they are bored and have nothing to do.
For example, there was a famous artist Paul Jones that donated his art collection to the school this past spring through the summer months. I took my child to see the exhibit to learn about the collection and learn about a famous artist she was unfamiliar with and it was all free. The University also offers lecture series if you wish to do more in depth study for adults, music and movie programs to the public.