Williamsburg is fun, we were there shortly after the New Blacksmith Shop was opened. We had been there the year before when they were just starting the foundation. We watched the progress every day on the Web cam they have on the sight, quite interesting, including them putting Radiant Heat in the Concrete floor under the bricks! Plenty of Iron work all around the place to see and study.
A good camera, extra batteries, spare memory card needed. And Click away!
Unless your 30 you can't see all in one day, we try 2-3 when we get there but it's 500 miles for us to get there. There a number of forges there besides the shop. X the gunsmith shop with back to back forges in separate rooms, also the wheelwright shop where the Smiths were operating out of when they built the new shop.