New York's 18th congressional district

The Mary Van Duzer-Sayer House is the main residence of a 154-acre (62 ha) former farm on Taylor Road near the hamlet of Mountainville in the Town of Cornwall, New York, United States. It is a stone Federal style house built in 1832. Mary Van Duzer was the granddaughter of Isaac Van Duzer, one of Cornwall's early settlers and landowners. The farm she built with her husband was the southern tip of her grandfather's original landholdings. It remained in her family until 1903. In 1996 it was listed on the National Register of Historic Places (NRHP).

The Wilford Wood House is located on Pleasant Hill Road just east of the New York State Thruway in the Mountainville section of Cornwall, New York, United States. It is a white Colonial Revival farmhouse built in the late 19th century, a period when most large new houses in Cornwall were being built as boardinghouses to serve those who came to the area as a summer resort. The Wood house, too, would be used as a boardinghouse where guests could take in the mountain air and views of the surrounding mountains. It was added to the National Register of Historic Places in 1998. Signs around the property indicate that it is currently owned by nearby Storm King Art Center. It is sided in white clapboard, with a gabled roof shingled in asphalt and pierced by two chimneys, one stone and the other brick. The cornice is bracketed. A porch with two classical columns runs the length of the western (front) facade.

The Elias Hand House is a historic home located at Mountainville in Orange County, New York. It was built about 1830 and is a 1+1⁄2-story, clapboard-sided wood-frame dwelling in the Greek Revival style. It has a side-hall plan and a low-pitched gable roof. It features a portico with a pent roof supported by two square Doric order columns. Also on the property is a contributing wood-frame barn.It was listed on the National Register of Historic Places in 1998.

The Mountainville Grange Hall is l ocated on NY 32 just south of the hamlet of Mountainville in the town of Cornwall, Orange County, New York, United States. Built in 1904, the National Grange sold it in 1984 to the Jerusalem Temple Lodge No. 721, a local Masonic body of the Grand Lodge of New York, and it was renamed the Cornwall Masonic Temple.

The Samuel Brooks House is located on Pleasant Hill Road north of the hamlet of Mountainville in the Town of Cornwall, New York, United States. It is a cottage in a mix of Victorian architectural styles, most notably Carpenter Gothic and Stick Style, built around 1860. Its location, near Schunemunk Mountain, and architecture made it a desirable location for the summer boarders who made Cornwall a popular resort community in the late 19th century. It survives mostly intact today. In 1996 it was listed on the National Register of Historic Places (NRHP).

The Walter Hand House is located on Angola Road in Cornwall, New York, United States. It is the main building of a five-acre (2 ha) former farm, built around 1870, to serve as both a farmhouse and summer boardinghouse, in response to Cornwall's growing popularity as a summer resort town. Today it is known as Shadow Mountain Farm, a bed and breakfast . Both properties were listed on the National Register of Historic Places (NRHP) in 1996.

Mountainville is a hamlet in the western section of the town of Cornwall, in Orange County, New York, United States. It is mostly wooded, lightly populated area, located in the narrow valley of Woodbury and Moodna creeks between Schunemunk Mountain and the Hudson Highlands. The New York State Thruway and NY 32 run through the hamlet. It has the ZIP Code 10953. While signs along the highway suggests it includes almost the entire portion of Route 32 in the town, the population is centered in the area around Taylor Road between 32 and the Thruway. There is a small central area with a post office and fire department. Storm King Art Center is located in Mountainville. Famous water color artist Winslow Homer spent a year in Mountainville as a young artist and many of his pastoral themed water colors were made there.

The Kellogg House is a historic home located at Cornwall in Orange County, New York. It was built about 1795 and is a 2+1⁄2-story, five-bay, center-hall-plan wood-frame dwelling. It features an overhanging gable roof with exposed rafters.It was listed on the National Register of Historic Places in 2001.

Isaac Cocks House is a historic home located at Cornwall in Orange County, New York. The main house was built about 1795 and is a two-story, five bay, center hall wood frame dwelling in the Federal style. It features clapboard siding and a fieldstone basement.It was listed on the National Register of Historic Places in 1996.

Vermont Hatch Mansion is a historic home located at Cornwall in Orange County, New York. It was built in 1935 for Vermont Hatch and is a two-story, coursed ashlar stone dwelling in an eclectic French chateau style. It features a series of slate tiled hipped roofs. Also on the property is a gable roofed, stone garage.It was listed on the National Register of Historic Places in 1995.

The Carvey–Gatfield House (originally called the Carney-Gatfield House) is a historic house located at 375 Angola Road in Cornwall, Orange County, New York.

Storm King Art Center, commonly referred to as Storm King and named after its proximity to Storm King Mountain, is an open-air museum located in New Windsor, New York. It contains what is perhaps the largest collection of contemporary outdoor sculptures in the United States. Founded in 1960 by Ralph E. Ogden as a museum for Hudson River School paintings, it soon evolved into a major sculpture venue with works from some of the most acclaimed artists of the 20th century. The site spans approximately 500 acres (200 ha; 0.78 sq mi), and is located about a one-hour drive north of Manhattan.