I visited Williamsburg, Virginia many years ago. Don't remember if we covered any attractions other than Colonial Williamsburg and Busch Gardens. We spent two days in Colonial Williamsburg but the second day was pretty repetitious. We found the trade shops extremely interesting- the tin shop, printer, wigmaker, brickmaker etc... Don't miss the public gaol, capitol, courthouse, governor's palace. With a bit of planning and research you should be able to cover most of the main buildings/ attractions in one day.