The Please Touch Museum is a wonderful place to take your younger children. They have lots of different activities: Alice in Wonderland Tea Party, Supermarket area, water play, subway model, train table, art projects, reading area, barnyard babies, and much more. There are lots of activities for those with short attention spans. I would recommend purchasing a membership if you live in the area, which is a great value. It tends to get crowded, especially in the morning with all the fieldtrips, but quiets down after lunchtime.