"Step back into the 18th century" at this "house that George built", a "must-see" Alexandria "treasure" that re-creates the "lives and times" of the first U.S. president and his wife, who lived for 40 years on this "wonderful waterside" property; "you'll be walking quite a bit" on the "beautiful grounds", but the "interesting architecture" and "expert historical presentations" make it a worthwhile trip, particularly now that they've added 67,000 sq. ft. of galleries, theaters and other interactive displays; P.S. "the best time to go" is during the Christmas season, when they offer "night tours."