Visiting Jamestown Settlement in the Colonial Williamsburg area in Virginia. Should you do Jamestown Settlement or Historic Jamestowne? Do both if you can but if you only have time for one, pick Jamestown Settlement -- see why.
Things to do in Colonial Williamsburg Without Buying a Ticket
I love that eight of these ten family activities are in the Colonial area (or related). The other two are good ideas as well; one is a free park, and the other is a store where you don't have to spend money to enjoy the experience.