OFFSITE EVENT Location: George Washington's Mount Vernon Join Mount Vernon for its most popular event of the year! Celebrate the history of wine in Virginia as you sample wines from 16 of Virginia's finest wineries. Bring a blanket and relax on the east lawn overlooking the scenic Potomac River. Enjoy spectacular views and live music. Advance tickets are highly recommended - this event always sells out. Visit the Event Website to learn more and purchase tickets. (Photo courtesy George Washington's…