Castle Gatehouse, Washington Aqueduct

Berkley is a neighborhood in the Northwest quadrant of Washington, D.C.

The Georgetown Reservoir is a reservoir that provides water to the District of Columbia. Part of the city’s water supply and treatment infrastructure, it is located in the Palisades neighborhood, approximately two miles downstream from the Maryland–D.C. boundary. The reservoir was built by the United States Army Corps of Engineers as part of the Washington Aqueduct project. It was partially completed by 1858, but work was suspended for lack of funds. Construction began again in 1862, and was complete in 1864. Additional construction and modifications to the reservoir were carried out through the 1860s and 1870s.Water from the Dalecarlia Reservoir is pumped to the Georgetown Reservoir for further sedimentation before being treated at the McMillan Reservoir. The reservoirs and the nearby Dalecarlia water treatment plant are operated by the Army Corps of Engineers. The treated water is distributed throughout the city in water mains managed by the D.C. Water and Sewer Authority. At the outlet of the Georgetown facility is a sluice gate building that controls the flow of water into Washington City Tunnel, which leads to the McMillan Reservoir. This structure, called the Georgetown Castle Gatehouse, was built by the Army (c. 1901) in the shape of a castle.

St. Patrick's Episcopal Day School is an independent nursery, elementary, and middle school in Washington, D.C. It is affiliated with St. Patrick's Episcopal Church.

St. Patrick's Episcopal Church is an Episcopal church located in the Palisades neighborhood of Washington, D.C. It is a parish of the Episcopal Diocese of Washington.

The Lab School of Washington is a small (grades 1–12) independent school in Washington, D.C. for students with language based learning differences like dyslexia. The Lab School was established in 1967 by Sally Smith. Kim Wargo has directed the school since July 2020. The Lab School of Washington has an arts centered curriculum on two campuses: one on Reservoir Road, NW for middle through high school, the other on Foxhall Road NW for elementary students.

Engine Company 29, at 4811 MacArthur Blvd. NW in Washington, D.C., is a fire station built in 1925. It was listed on the National Register of Historic Places in 2007.It was designed by architect Albert L. Harris in Colonial Revival style. It has also been known as the Palisades Firehouse and as Engine Company No. 29. It was designated a Washington, D.C. historic designation on July 22, 2004. According to the DC Office of Planning,The Palisades firehouse was the city’s first one-story firehouse, and one of two prototype Colonial Revival firehouses dating from 1925. In that year, the fire department completed its conversion to all-motorized apparatus, enabling a more rapid response and necessitating fewer firehouses overall. But facilities grew larger, and in outlying suburban areas, more land was available to spread the stations over a more convenient single floor. The design is among the most successful of Municipal Architect Albert Harris. Following neo-Georgian principles, the main block of the front-gabled brick building is symmetrically composed, but the dormitories are placed to the side in a secondary wing, creating a T-shaped plan. A majestic four-story hose tower rises at the rear, balancing the design and creating a conspicuous neighborhood landmark. The department's Robert “Bob” Marshall "loved firefighting so much" that he commuted 80 miles to work there, before he was killed in a non-work-related accident in 2018.

Colony Hill is a small neighborhood located in the southwest corner of Glover Archbold Park in Northwest Washington, D.C. It is bounded on the north and east by the park, on the south by Reservoir Road NW, and on the west by Foxhall Road NW. Colony Hill falls within Ward 3. Colony Hill is purely residential, and consists of only five streets: Reservoir Road, Foxhall Road, Hoban Road, 45th Street NW, and Hadfield Lane. It belongs within the 20007 zip code.

The Wetzell-Archbold Farmstead is an historic stone and log farmhouse, located at 4437 Reservoir Road, Northwest, Washington, D.C., in the Foxhall neighborhood.

Fort C.F. Smith was a lunette that the Union Army constructed in Alexandria County (now Arlington County), Virginia, during 1863 as part of the Civil War defenses of Washington (see Washington, D.C., in the American Civil War). It was named in honor of General Charles Ferguson Smith, who died from a leg infection that was aggravated by dysentery on April 25, 1862. Fort C. F. Smith connected the Potomac River to the Arlington Line, a row of fortifications south of Washington, D.C., that was intended to protect the capital of the United States from an invasion by the Confederate States Army.The Army built the lunette on a bluff overlooking the Potomac River and Spout Run. Because of its elevation and location, the lunette could protect the Aqueduct Bridge from invaders traveling along each of the two waterways.

The Potomac Palisades Site is an archaeological site in Washington, D.C., United States. Measuring approximately 1 acre (0.40 ha) in area, the site lies near the intersection of MacArthur Boulevard and Foxhall Road,: 4  along the Potomac River. It is one of many archaeological sites located in the present-day Potomac Palisades;: 4  a 1984 field survey revealed evidence that supported earlier ideas of the archaeological richness of the northern bank of the Potomac in this area.: 8 Among the artifacts found during excavation at the site is a triangle-shaped projectile point. The primary use of the site appears to have been during the Late Archaic period, during which time it was heavily used as a lithic workshop.: 4  In recognition of its archaeological value, the Potomac Palisades Site was listed on the National Register of Historic Places in 1982.

The Fellowship (incorporated as Fellowship Foundation and doing business as the International Foundation), also known as The Family, is a U.S.-based nonprofit religious and political organization founded in April 1935 by Abraham Vereide. The stated purpose of The Fellowship is to provide a fellowship forum where decision makers can attend Bible studies, attend prayer meetings, worship God, experience spiritual affirmation and receive support. The Fellowship has been described as one of the most politically well-connected and one of the most secretly funded ministries in the United States. It shuns publicity and its members share a vow of secrecy. The Fellowship's former leader, the late Douglas Coe, and others have justified the organization's desire for secrecy by citing biblical admonitions against public displays of good works, insisting that they would not be able to tackle diplomatically sensitive missions if they drew public attention.The Fellowship holds one regular public event each year, the National Prayer Breakfast, which is in Washington, D.C. Every sitting United States president since Dwight D. Eisenhower has participated in at least one National Prayer Breakfast during their term. The group's known participants include ranking United States government officials, corporate executives, heads of religious and humanitarian aid organizations, and ambassadors and high-ranking politicians from across the world. Many United States senators and congressmen have publicly acknowledged working with the Fellowship or are documented as having worked together to pass or influence legislation. Doug Burleigh is a key figure in the organization and has taken over organizing the National Prayer Breakfast since the death of his father-in-law, Doug Coe. The current president of the organization (starting in 2017) is Katherine Crane.In Newsweek, Lisa Miller wrote that rather than calling themselves "Christians", as they describe themselves, they are brought together by common love for the teachings of Jesus and that all approaches to "loving Jesus" are acceptable. In 2022, Netflix released a documentary called The Family which depicts the organization's influence on American politics throughout history.

The Palisades Neighborhood Library is a branch of the District of Columbia Public Library in the Palisades neighborhood of Washington, D.C. It is located at 4901 V Street NW. A small sub-branch library opened in the neighborhood in 1928 and the current building opened in 1964, with a $8.2 million renovation completed in 2018.