Underhill Burying Ground

George Underhill House, also known as Wayside, is a historic home located at Locust Valley in Nassau County, New York, USA. It is a rambling U-shaped wood-frame house with 1-, 1+1⁄2- and 2-story sections dated to about 1790. The original section is a 1+1⁄2-story timber-frame structure with a moderately pitched gable roof. Also on the property is a 1+1⁄2-story, wood-frame tenant house.It was listed on the National Register of Historic Places in 2003.

Bailey Arboretum is a 42-acre (17 ha) arboretum located in Lattingtown, New York, a small village on the North Shore of Long Island. It opened to the public on Aug. 5, 1969 after being donated to Nassau County in 1968 by the heirs of Mr. and Mrs. Frank Bailey. Through an agreement with the Village of Lattingtown, admission to the arboretum was limited to 200 people at any one time.

Stephen Harding House, also known as the Wright-Underhill House and Turbillon, is a historic home located at Mill Neck in Nassau County, New York. The house is believed to date to the 18th century settlement period, then substantially expanded and restyled in the Colonial Revival style in the late-19th and early-20th centuries. It is a two-story, five-bay, frame dwelling with a side-gable roof with three dormers. It has two two-story additions. Also on the property are the contributing wood-framed shed, horse barn, and chicken coop.It was listed on the National Register of Historic Places in 2011.

Mill Neck is a former rail station along the Oyster Bay Branch of the Long Island Rail Road. It is located between Oyster Bay and Locust Valley stations. As of 2023, the historic former station depot is home to Mill Neck's village hall, post office, and police substation.

The John P. Humes Japanese Stroll Garden is a 7-acre (28,000 m2) Japanese garden in Mill Neck, New York, providing a retreat for passive recreation and contemplation.

Locust Valley Cemetery is a non-denominational cemetery located in Locust Valley, New York, in Nassau County. The cemetery was founded in the nineteenth century and designed by John Charles Olmsted and Frederick Law Olmsted Jr., renowned architects of Central Park. They are the sons of the famed landscape designer Frederick Law Olmsted. The two brothers were among the founding members of the American Society of Landscape Architects (ASLA). Locust Valley Cemetery is situated on over 32 lushly landscape acres with a park-like setting. The cemetery is owned by its plot holders and managed by an association.

Mill Neck is a village in the Town of Oyster Bay in Nassau County, on the North Shore of Long Island, in New York, United States. The population was 997 at the 2010 census.

Locust Valley High School is a public high school located in Lattingtown, Nassau County, New York, U.S.A., and is the only high school operated by the Locust Valley Central School District. As of the 2014–15 school year, the school had an enrollment of 716 students and 45.3 classroom teachers (on an FTE basis), for a student–teacher ratio of 15.8:1. There were 81 students (11.3% of enrollment) eligible for free lunch and 21 (2.9% of students) eligible for reduced-cost lunch.

Lillian Sefton Dodge Estate, also known as Sefton Manor and Mill Neck Manor Lutheran School for the Deaf, is a historic estate located at Mill Neck in Nassau County, New York. It has 34 rooms and is 60,000 square feet.

Matinecock is a village located within the Town of Oyster Bay in Nassau County, on Long Island, in New York, United States. The population was 810 at the 2010 census.

Cock-Cornelius House, also known as Wyckoff-Underhill House, is a historic home located at Locust Valley in Nassau County, New York. It is a 1- to 2+1⁄2-story, "U" shaped wood-frame dwelling sheathed in wood shingles. The main block is 2+1⁄2 stories and five bays wide. The oldest section of the house is dated to the Federal period, about 1790. The house was expanded in the 1840s and in the 1920s-1930s.It was listed on the National Register of Historic Places in 2006.

Lattingtown is a village located within the Town of Oyster Bay in Nassau County, on Long Island, in New York, United States. The population was 1,881 at the 2020 census.