Colonial Williamsburg is a must-see for anyone who is even remotely interested in the American Revolutionary period.
The restoration of the city is remarkable. Strolling down Duke of Gloucester Street can take you back in time. The history that is shared, especially through the period historians who play the role of specific figures (e.g., Thomas Jefferson, Patrick Henry, George Washington, Peyton Randolph, John Randolph, slaves, pastors), is outstanding. Be sure to engage in conversation with the people who are dressed in period costumes, as that is where the fun really begins. They will not come out of character, so to have the most fun and to learn the most about what was on the minds or in the hearts of Virginians in 1774, be sure to ask questions that fit the period.
I'd suggest buying the 1-year Freedom Pass, as there is far too much to see and do in one day. And besides, it is only a few bucks more.
Take advantage of the many tours and shows offered throughout the day and into the night. Seriously consider making reservations or buying show tickets well in advance of your trip. It's easy to do online at Colonial Williamsburg.
Some shows/events that we especially enjoyed were: Randolph House (linger and talk to the characters and you may learn things like the fact that John Randolph, the King's Attorney, regretted sponsoring Patrick Henry in his study of the law); solo presentations by Thomas Jefferson, Patrick Henry, and George Washington; Cry Witch; Governor's Concert; conversations with slaves; and tours of the Courthouse, Raleigh Tavern, and Governor's Palace.
You will certainly want to eat at one or more of the taverns (King's Arms, Shields, Chowning's, and Christiana Campbell's), as they are truly fun and memorable experiences. Much of the food is from the period. It may sound odd or old-fashioned, but it's very good. We ordered a variety of entrees and shared them around the table to further our culinary experience. To learn a little more about a tavern experience or see links to their menus, see my other entry entitled "Williamsburg Taverns."
A trip to the gaol (jail) is also worthwhile to give a glimpse of how good we have it today.
Experiencing the church service in Bruton Parish Church is worthy of your time, as is listening to the dissenting Baptist pastor who is outside the church afterward.
The mock trial and burning of Lord North and the daily muster of the local militia are events worth seeing.
So much to do, see, taste, smell . . . take it all in and enjoy your step back in time!
P.S. Be sure to pick up one of the daily/weekly guides (e.g., Visitor's Companion) at the visitor center for the complete schedule of activities. It will be your life line!