Magnificent Oakhill stands atop a steep hill on the northern edge of Marshall overlooking the town and open fields to the northeast. This Italianate house once dominated some sixty-four acres of farmland. Chauncey M. Brewer (1814–1889), a pioneer who came from Oneonta, New York, to Marshall in 1835 and who achieved prominence in merchandising, banking, and local politics, built it. The eighteen-room, red brick house is a two-and-a-half-story cube with a square belvedere on the roof and a wide, columned veranda that sweeps from the front around to the building's side. Paired brackets support the roof. A two-story, rectangular addition is on the west. The interior is profusely decorated with marble fireplaces, wrought-metal chandeliers, and stained glass window panels.