Pam---my husband and I just spent a week in Williamsburg this past May. We stayed in one of the actual Colonial Houses there and toured every single site in the area. It was a lot of fun, but if you are going because you want to see a lot of antique quilts, I am afraid you would be disappointed. There is a nice museum there and it had a quilt exhibit. But, it was a small exhibit and it changes periodically. The quilts were not ones from the Colonial Williamsburg area, even. There was not even a quilting demonstration on the area while we were there.
I am not trying to rain on your parade, just ask lots of questions and have realistic expectations. I would hate for you to spend a ton of money and then be disappointed in the end.
I took pics of some of the quilts in the museum. If you are interested in seeing them, I would be happy to post them for you.....