The Moss Mansion Historic House Museum is located in Billings, Montana on 914 Division St. It is a turn of the century, red-stoned mansion built by P.B. Moss, who moved to Billings from Paris, Missouri. It was inhabited solely by Mr. and Mrs. Moss, their six children, and 3 servants until 1984. The house was built for a cost of $105,000, when most homes averaged about $3000. It has 28 rooms, and is 60 feet (18 m) square. It rises 45 feet (14 m) into the air.
The Mansion is listed on the National Register of Historic Places. Visitors can still see the original furniture, draperies, carpets and fixtures during a one-hour guided tour. Seasonal exhibits are also featured. The Moss Mansion was designed by the famous New York Architect Henry Hardenbergh, who also designed the original Waldorf-Astoria, Plaza Hotel, The Dakota, Williard Hotel, and Copely Hotel. The Moss Mansion is operated by the Billings Preservation Society, Inc., a non-profit organization.