The boundary markers of the original District of Columbia are the 40 milestones that marked the four lines forming the boundaries between the states of Maryland and Virginia and the square of 100 square miles (259 km²) of federal territory that became the District of Columbia in 1801. Working under the supervision of three commissioners that President George Washington had appointed in 1790 in accordance with the federal Residence Act, a surveying team that Major Andrew Ellicott led placed these markers in 1791 and 1792. Among Ellicott's assistants were his brothers Joseph and Benjamin Ellicott, Isaac Roberdeau, George Fenwick, Isaac Briggs and an African American astronomer, Benjamin Banneker.
Lettie G. Howard, formerly Mystic C and Caviare, is a wooden Fredonia schooner built in 1893 in Essex, Massachusetts, USA. This type of craft was commonly used by American offshore fishermen, and is believed to be the last surviving example of its type. She was declared a National Historic Landmark in 1989. She is now based at the South Street Seaport Museum in New York City.
The Northside Village Historic District encompasses a rural village center on Stafford Road in northern Charlton, Massachusetts. Located at the junction of Stafford Road with Northside and Cemetery Roads is a small cluster of residential buildings, developed beginning in 1735 around a small tanning business, and later as a stagecoach stop. The district was listed on the National Register of Historic Places in 1977.
The Kingsbury-Whitaker House is a historic house at 53 Glendoon Street in Needham, Massachusetts. The 2-1/2 story wood frame house has at its core elements of a house that was built on the site in about 1720. The old house, built by Deacon Timothy Kingsbury, became the significantly-altered nucleus of a larger house built in 1840 by Edward Whitaker, a prominent local businessman. With further additions, the building encapsulates more than 200 years of construction methods. The house was listed on the National Register of Historic Places in 1990.
The Richmond Furnace Historical and Archeological District is a historic industrial area located on State, Cone Hill, and Furnace Roads in Richmond, Massachusetts. The industrial history of the site dates to 1763 when the first grist and sawmills were built. In 1829, the first stone furnace was constructed for the production of iron from abundant hematite ore found nearby. It was rebuilt in 1863, and overhauled in 1905 to increase capacity. The area saw industrial iron production until 1923. The historic district also includes several other houses and buildings related to the iron works. It was added to the National Register of Historic Places in 1999.
The North Hatfield Historic District encompasses a small rural village in Hatfield, Massachusetts. It consists of a small cluster of buildings along West Street and Depot Road in the vicinity of a former railroad station. It includes a few buildings associated with the railroad, including a depot and freight buildings, as well as commercial and residential structures, most of which postdate the 1848 arrival of the railroad. The village was important in the community as an arrival point for immigrants working in its fields and industry. The district was listed on the National Register of Historic Places in 1997.
The North Canal Historic District of Lawrence, Massachusetts, encompasses the historic industrial heart of the city. It is centered on the North Canal and the Great Stone Dam, which provided the waterpower for its many mill complexes. The canal was listed on the National Register of Historic Places in 1975, while the district was first listed in 1984, and then expanded slightly in 2009.
The Middlesex Fells Reservation Parkways are the roadways within and bordering on the Middlesex Fells Reservation, a state park in the northern suburbs of Boston, Massachusetts. The park includes portions of the towns of Malden, Medford, Melrose, Stoneham, and Winchester. The roads inside the park and around its perimeter have been listed on the National Register of Historic Places. Other portions of some of the roads are covered by more than one listing in the national register; see Fellsway Connector Parkways and Middlesex Fells Reservoirs Historic District.
The South School is a historic one-room schoolhouse at 6 Schoolhouse Rd. in Shutesbury, Massachusetts. It is one of two such schoolhouses remaining in Shutesbury, and is a rare example of a side-gable construction. Its date of construction is uncertain, but is estimated to be about 1830. Because of the simplicity of the building, the presence of both Federal and Greek Revival elements in its design, and the comparatively late adoption of Greek Revival styles in the rural community, the school may have been built at a later date.
The Little Red Schoolhouse, also known as Briggs Schoolhouse, is a historic schoolhouse in Farmington, Maine. The one-room wood-frame schoolhouse was built in 1852, and originally stood on the Wilton Road at Red Schoolhouse Road. It served Farmington as the Briggs District school until 1958, and is one of the community's few surviving district school buildings. It was then used as a space for special needs students before being finally closed in 1969. It was moved the Franklin Agricultural Society fairgrounds on High Street in 2007. The building was listed on the National Register of Historic Places in 1972. It is open to the public during the annual Farmington Fair.
The former District 10 School is located just north of state highways 28 and 30 south of Margaretville, New York, United States. It is a stone one-room schoolhouse built, demolished and rebuilt in the middle of the 19th century.
The Leverett Center Historic District is an expansive 467-acre (189 ha) historic district encompassing the historic heart of the rural community of Leverett in eastern Franklin County, Massachusetts. The district is focused on a two-mile stretch of Depot and Montague Roads, at whose center is the civic heart of the town. It includes the 1838 Greek Revival First Congregational Church, the town hall, whose present form was achieved in 1895 by raising the 1845 construction and building a first floor underneath it, and the Colonial Revival Field Memorial Library (1916). It also includes a town pound built c. 1822, and a number of 18th century residences. The district was listed on the National Register of Historic Places in 2008.
The District No. 5 School is an historic school building and local history museum at 2 Old Mill Road in Shrewsbury, Massachusetts. It is one of two relatively unmodified one-room schoolhouses in the town. Built in 1828, the brick schoolhouse is also one of the oldest surviving school buildings in the state. The building was listed on the National Register of Historic Places in 2013.
The Brick Schoolhouse is a historic one-room schoolhouse at 432 New Hampshire Route 123 in Sharon, New Hampshire. Built in 1832, it is the only of the town's three such buildings to survive, and was the only one made of brick. It is also the only school building now standing in the town, since its students have been schooled in neighboring Peterborough since 1920. The building was listed on the National Register of Historic Places in 2002.
The District No. 9 Schoolhouse is a historic school building at 358 Hoyt Road in Gilford, New Hampshire. Built in 1815 and repeatedly altered to accommodated changing trends in school design, it is the best-preserved of Gilford's surviving district schoolhouses. Now a private summer residence, the building was listed on the National Register of Historic Places in 2000.
The Harriman School is a historic one-room schoolhouse on North Road in rural Sebec, Maine. Built in 1860, it is the oldest of two surviving 19th-century district schoolhouses in the community. The vernacular Greek Revival building served as a public school until 1933, and was converted into a museum by the Sebec Historical Society after it acquired the property in 1966. The building was listed on the National Register of Historic Places in 1996.
The Lincoln School is a historic former one-room schoolhouse at 8 Orchard Road in Acton, Maine. Built in 1884, it is the best-preserved of the town's surviving district school buildings, and was its last active district school, closed in 1957. It was listed on the National Register of Historic Places in 2013.
The District No. 5 School is an historic school building and local history museum at 311 East Road in Petersham, Massachusetts. It is one of two relatively unmodified one-room schoolhouses in the town that were built in 1849. It is presently managed by the local historical society as a local history museum. The building was listed on the National Register of Historic Places in 2016.
The Mill Brook Bridge is a historic stone arch bridge, located just north of Lower Blissville Road in Lisbon, Connecticut. With a plausibly estimated construction date of the 1790s, it is probably the oldest surviving stone arch bridge in the state. It was listed on the National Register of Historic Places in 1997. Since then, it has deteriorated and is partially collapsed.
The Dunstable Center Historic District encompasses the town center of Dunstable, Massachusetts. Centered at the junction Main, High, and Pleasant Streets, this area has served as the town center since 1791, when its church was moved here. The district, now home to a broad array of residential and civic architecture, was listed on the National Register of Historic Places in 2002.
