Situated on 27 hillside acres overlooking the falls of the Rappahannock River, Belmont began as an 18th-century farmhouse (the central six rooms of the house date to the 1790s) and was enlarged to a 22-room estate by a later owner. Although the house has historic attributes, its fame comes from being furnished with the art treasures, family heirlooms, and European antiques of famed American...