Stoner–Saum Farm

The McKinstry's Mills Historic District is a national historic district in Union Bridge, located in Carroll and Frederick County, Maryland. The district comprises the entirety of the settlement of McKinstry's Mills, a 26-acre (110,000 m2) hamlet consisting of six separate properties that were owned and developed in the 19th century by the McKinstry family, local millers. At the center is a 3+1⁄2-story grist mill constructed in 1844. Also included are the McKinstry homestead, built between 1825 and 1835; the residence of miller Samuel McKinstry, dated 1849; a store building of 1850; and two other small houses and a variety of outbuildings. There is also a 1908 Warren pony truss bridge. It was added to the National Register of Historic Places in 1997.

Hopewell is a set of historic homes and farm complexes located at Union Bridge, Carroll County, Maryland, United States. It consists of four related groupings of 19th century farm buildings. The Hopewell complex consists of two historic farms: Hopewell and the smaller F.R. Shriner (Sam's Creek) Farm. Hopewell's two-story main house dates from 1818. It has the distinction of having the first interior bathroom installed in Frederick County outside the City of Frederick. The main farm also contains a stone dairy, a frame privy, a frame carriage house, a frame workshop, a brick smokehouse, a brick bake oven, an ice house, and a frame Pennsylvania barn. There are two tenant complexes associated with Hopewell. The F.R. Shriner Farm lies in Carroll County and consists of a brick two-story house on a raised coursed marble foundation, two smokehouses, an outhouse, a Pennsylvania barn, two corrugated iron silos, a double corncrib-wagon shed, two modern feed/storage buildings, a chicken coop, garage, work shed, piggery, and tractor shed. Hopewell was listed on the National Register of Historic Places in 1980.

Pipe Creek Friends Meetinghouse is an historic Friends meeting house located at Union Bridge, Carroll County, Maryland, United States. It is a 1+1⁄2-story brick structure in Flemish bond on a stone foundation. The meetinghouse was begun in 1771 and completed the next year. A fire in October 1934 destroyed the interior, but the original benches were saved. The founders of the meetinghouse were immigrants from the north of Ireland. It was the Quaker meetinghouse attended by a great-grandfather of President Herbert Hoover.The Pipe Creek Friends Meetinghouse was listed on the National Register of Historic Places in 1976.

Hard Lodging is a historic home located at Union Bridge, Carroll County, Maryland, United States. It is built on a small cliff overlooking the site where its first owner, Solomon Shepherd, had a mill that is no longer standing. The house was built in three stages: the middle section, a 2+1⁄2-story brick structure, was probably built first; the main section of the house is attached to the west and is a Federal-style, three-by-two-bay, 2+1⁄2-story house with an interior gable-end chimney. Hard Lodging is currently a private residence and is no longer owned by the Historical Society. The home is an example of Pennsylvania German architecture. Hard Lodging was listed on the National Register of Historic Places in 1978.

Linwood Historic District is a national historic district at Linwood, Carroll County, Maryland, United States. The district includes a mixture of railway structures (grain elevator, freight station, site of demolished Western Maryland Railway station), community structures (general stores, post office, church, Sunday School hall/schoolhouse, site of blacksmith shop) and residences with rural dependencies (smokehouses, ice houses, windmills, sub-cellars). They date to the 19th and early-20th century and most structures relate to Linwood's role as a rail depot for the transportation of farm goods and supplies.It was added to the National Register of Historic Places in 1980.

Union Bridge Historic District is a national historic district at Union Bridge, Carroll County, Maryland, United States. The district consists of this small piedmont village, which serves the area as a market center for the surrounding agricultural area. The greatest growth occurred in the 1880s after the Western Maryland Railway built its shops here.It was added to the National Register of Historic Places in 1994.

Union Bridge is a town in Carroll County, Maryland, United States. The population was 936 at the 2020 census.Much of the town was added to the National Register of Historic Places as the Union Bridge Historic District in 1994.

Linwood is an unincorporated community in Carroll County, Maryland, United States. The community is home to the Linwood Historic District, which was added to the National Register of Historic Places in 1980.

Wilson's Inheritance is a historic home and farm complex located at Union Bridge, Carroll County, Maryland, United States. The complex includes the 1832-38 farmhouse, a bank barn, blacksmith shop, washhouse, smokehouse, chicken houses, sheds, and a privy. The brick house features an L-shaped plan, stone foundation, gable roof, ornamentation, and its siting into a slope.Wilson's Inheritance was listed on the National Register of Historic Places in 1985.

Union Bridge station is a historic railway station in Union Bridge, Carroll County, Maryland. It was built in 1902 as a stop for the Western Maryland Railway. It is representative of the rural railway stations constructed during the late 19th and early 20th centuries. The station's two buildings are arranged with their south façades lengthwise fronting the railroad tracks.The railroad operated a major railroad car shop adjacent to the station from the late 19th century until the 1950s. The shop buildings were demolished in 1964.The station was listed on the National Register of Historic Places in 1976 as Union Bridge Station.

Appler-Englar House is a historic home located at New Windsor, Carroll County, Maryland. It is a two-story, five-by-two-bay brick dwelling constructed about 1790 in the Georgian style.It was listed on the National Register of Historic Places in 2001.

Mt. Pleasant, also known as the Clemson Family Farm, is a historic home located at Union Bridge, Carroll County, Maryland, United States. It is a five-bay by two-bay, 2+1⁄2-story brick structure with a gable roof and built about 1815. Also on the property is a brick wash house, a hewn mortised-and-tenoned-and-pegged timber-braced frame wagon shed flanked by corn cribs, and various other sheds and outbuildings. It was the home farm of the Farquhar family, prominent Quakers of Scotch-Irish descent who were primarily responsible for the establishment of the Pipe Creek Settlement.Mt. Pleasant was listed on the National Register of Historic Places in 1998.