Gatehouse on Deerhill Road

The LeDoux/Healey House is located on Deer Hill Road in Cornwall on Hudson, New York, United States. It was built around 1890 for a daughter of Lyman Abbott who was a summer resident of the area. It is considered a good example of the Shingle style and was renovated and expanded by later owners. In 1982 it was listed on the National Register of Historic Places. The house is situated near the top of Deer Hill, a wooded area that is the highest point in the village. There are views to the Hudson River. It is a two-story hip-roofed shingle-sided frame building with polygonal and gabled dormer windows on its upper story. The west facade has a full-length stone veranda with shingled pillars, leading to an enclosed porch on the southern end. On the east, a small hipped roof overhangs an original Dutch door. Many original finishings and trim remain inside as well.It was built around 1890 by the local firm of Mead and Taft as a summer residence during a time when Cornwall was becoming popular with New York City residents as a place to escape the heat in the summer. The architect is unknown. Its second owner greatly expanded it into its present form. Afterwards it became part of an estate. The carriage house renovated and expanded into a separate residence in 1972. It has remained a private house throughout its existence.

Deer Hill is a historic home located at Cornwall in Orange County, New York. It was built about 1875 and is a 2-story, frame dwelling with clapboard siding in the Italianate style. Also on the property is a 1+1⁄2-story clapboard barn.It was listed on the National Register of Historic Places in 1982.

The Amelia Barr House, also known as Cherry Croft, is located on Mountain Road in Cornwall on Hudson, a village in Orange County, New York, United States. It is on the slopes of Storm King Mountain, near Storm King School. Barr, the most published American female writer born in the 19th century, lived here during the most prolific and successful period of her career. Barr, an Englishwoman who came to the United States from Lancashire at the age of 19, moved to New York City in the early 1870s with her daughters from Galveston, Texas, after her husband and six of her nine children died of yellow fever. There she began to write fiction. In 1885, she and her daughters began spending summers at a boardinghouse in Cornwall. Her novels eventually became successful enough that, in 1891, she could afford to buy the cottage, previously rented by artist Abbot Handerson Thayer. After highly regarded local builders Mead and Taft renovated it extensively, she renamed it Cherry Croft, and accordingly most of her work from that time period came to be known as the Cherry Croft novels. She summered there until selling it in 1915, when she moved to White Plains to be cared for by her daughter Lilly. Mead and White's renovations resulted in a 3,500-square foot (315 m2) three-storey home with six bedrooms, four bathrooms, library, living room and dining room. It has a 1,000-square foot (90 m2) wraparound porch. Barr had a turreted writing room added on upstairs for her use. The original fixtures and trim, including the window screens, are still in place. In 1982, it was added to the National Register of Historic Places. It has been repainted in white and black from the brown with red trim Barr favored. After continuous occupation since Barr's day, in April 2006 it became vacant, and remains so, although work is actively being done on the house as of 2007.

The Edward Payson Roe Memorial Park is a public park and hiking trail dedicated to American novelist Edward Payson Roe, located in Cornwall-on-Hudson, New York. It borders on land of the Hudson Highlands Nature Museum's Wildlife Education Center. The park features a memorial tablet dedicated to Roe's legacy in 1894.

The Scribner House is located on Roe Avenue in Cornwall, New York, United States. It was built in 1910 as the main house for the summer estate of New York City publishing executive Charles Scribner II, one of Charles Scribner's Sons. It combines Colonial Revival interiors with a Shingle style exterior, including some hints of the Arts and Crafts Movement. After the Scribners sold the estate, most of the land was sold and this is all that remains. In 1996 it was listed on the National Register of Historic Places.

Upland Lawn is a historic home located at Cornwall in Orange County, New York, USA. It was built about 1850 and is a 1+1⁄2-story, five-bay, center-hall-plan wood-frame dwelling in the Gothic Revival style. It features a steeply pitched, cross-gable roof with wood shingles.It was listed on the National Register of Historic Places in 1996.

Canterbury Presbyterian Church is located along Clinton Street in downtown Cornwall, New York, United States. It is a white stone and brick building in the Federal style, with later additions in a Colonial Revival style consistent with the earlier structure. Since 1996 it has been listed on the National Register of Historic Places. Services were last held in 2004 as the church merged into Cornwall Presbyterian Church, which had been founded by dissident members of Canterbury. The building has been used by several local nonprofit groups. In 2018 the Church which had been in need of structural repairs was acquired and converted in to a Dance Studio.

Black Rock Forest is a 3,870-acre (15.7 km2) forest and biological field station maintained by Black Rock Forest Consortium. It is located in the western Hudson Highlands region of the U.S. state of New York, in Orange County, mostly in the town of Cornwall, with the southern fringe overlapping into the neighboring town of Highlands. Established by a local resident in 1928, the forest was the property of Harvard University until 1989. The Consortium has invested heavily in facilities to improve its research and educational missions and promote sustainability, erecting several green buildings in the middle of the forest with guest facilities, classrooms and laboratories. Its educational facilities are used by groups at every level, from elementary grades to college undergraduates. Over 400 papers have been published from research done in the forest.

Stanton Preparatory Academy was founded in 1925 to prepare young men for entrance to the United States Military Academy at West Point and the United States Naval Academy in Annapolis. The school was located in Cornwall, New York, five miles from West Point. The school was founded and led by Lieutenant Colonel Hubert G. Stanton (born September 14, 1897 – died September 15, 1955). It followed in the tradition established by the National Preparatory Academy. That institution was owned and led by LT Charles Braden from 1890 until his death in 1919. In the late 1920s, some sources refer to it as the "Stanton Loomis Academy." Stanton was a 1911 graduate of West Point. He was the president of the class of 1911. Commissioned as an officer in the coastal artillery, he was an instructor in the Department of Mathematics at the academy between 1911 and 1914 and returned in 1917 as an assistant professor remaining as a member of the faculty until 1925. The 1938 edition of the Handbook of Private Schools for American Boys and Girls lists the tuition for boarders as $1,100 (roughly $16,695 in 2009 dollars) and $675 for the day school ($10,245 in 2009 dollars). Harvard University's tuition, by comparison, was only $400 a year. The school closed by 1952; that August, the town purchased its former property. The school building was renovated as the town hall; the grounds were converted to a park. Both U.S. services now operate their own preparatory schools, the United States Military Academy Preparatory School and the Naval Academy Preparatory School.

The Cornwall Central School District is based in Cornwall-on-Hudson, New York, and provides public education to the children of that village, the Town of Cornwall and portions of the neighboring towns of New Windsor and Woodbury. It operates three elementary schools, a middle school, high school and a small main office building in downtown Cornwall on Hudson. It was created from the merger of the Cornwall on Hudson and Cornwall school districts in the mid-1950s. The buildings used by both districts are still in use today. The others have been built since then. It is governed by a seven-member elected school board and is financed by property taxes levied within the district.

The A. J. Clark Store is located along Main Street in downtown Cornwall, New York, United States. It is a brick Italianate building dating from approximately 1875. It has a two-foot (60 cm) parapet around its entire roof and a covered two-story porch looking out on the street. Inside, original period features such as a pressed-metal ceiling, hardwood floors, doors and staircase remain. There have been no significant changes to the building since its original construction.Archer Clark built the building to house his butcher shop around 1875, after an 1870 fire destroyed his earlier quarters. It would continue in existence in that building for a century. Later, one of his descendants converted it into a delicatessen, and today another Clark does financial planning on the ground floor. In 1996 it was added to the National Register of Historic Places as an intact commercial building dating from Cornwall's days as a summer resort town in the late 19th century.

The Wyant-Talbot House is located on Clark Avenue in the village of Cornwall on Hudson, New York. It is a Registered Historic Place, built around 1870 in the Queen Anne style by L.N. Wyant, a local merchant. Talbot owned a store in the village, and by 1891, most of Clark Avenue. It was added to the National Register of Historic Places in 1996. Little is known about Mr. Leonard N. Wyant; in April 1880 he was elected an elder of the Cornwall Presbyterian Church.