Claude Moore Colonial Fair Today out in McLean. Went yesterday and had a blast. Its a working farm set in the 1771 time period. They have great beer, fire roasted chicken and amazing sausage also roasted over the fire. Plays, games, period re-enactors craft items for sale. You can visit the farm house or tobacco fields. Its a beautiful park and kids love it.
link
http://1771.org/?page_id=940