Embassy of Ecuador, Washington, D.C.

Meridian Hall is an historic house in the Columbia Heights neighborhood of Washington, D.C. It has been listed on the District of Columbia Inventory of Historic Sites since 1990 and it was listed on the National Register of Historic Places in 1991 as the Mansion at 2401 15th Street, NW.

Warder Mansion (also known as Warder-Totten House) is an apartment complex at 2633 16th Street Northwest, in the Meridian Hill Park neighborhood of Washington, D.C. It is the only surviving building in the city designed by architect Henry Hobson Richardson. In an early example of preservation commitment, the building was saved from demolition in the 1920s by being disassembled and moved 1.5 miles (2.4 km) north of its original site. In the 1990s, the Warder-Totten House's prospects for survival again looked bleak, but the building was saved a second time.

Antioch School of Law was a law school in Washington, D.C. which specialized in public advocacy. The school now operates as the University of the District of Columbia David A. Clarke School of Law (UDC-DCSL).The school was located in the historic Warder Mansion on 16th Street NW and its law library a block away on Crescent Place NW in the Adams-Morgan neighborhood of Washington, D.C., near Meridian Hill Park.

Josephine Butler Parks Center is an historic house, located at 2437 15th Street, Northwest, Washington, D.C., in the Meridian Hill neighborhood. It was listed on the U.S. National Register of Historic Places as House at 2437 Fifteenth Street, NW.

Meridian Hill is a small urban neighborhood in Washington, D.C., located in Northwest D.C. Meridian Hill is often considered to be a part of the larger neighborhoods of Adams Morgan and Columbia Heights, which it sits between. The neighborhood is primarily residential, though it also hosts a notable amount of diplomatic missions and embassies. Meridian Hill was developed as part of the City Beautiful movement in the late 19th century, when socialite Mary Foote Henderson embarked on a major initiative to turn Meridian Hill into the city's most prestigious area. While the neighborhood lured many prominent figures to build mansions and embassies, Henderson did not achieve her goal of building a new Presidential Mansion on the central area of the hill, which was eventually developed into Meridian Hill Park.

The Pink Palace, also known as the Mrs. Marshall Field House and the Inter-American Defense Board, is a historic house located in the Adams Morgan neighborhood in Washington, D.C. It has been listed on the National Register of Historic Places since 1991. George Oakley Totten Jr. was the architect for the structure that was completed in 1906. Additions were made to the house in 1912 and 1988.

Meridian Hill Park, also known as Malcolm X Park, is a structured urban park located in the Washington, D.C., neighborhood of Columbia Heights; it also abuts the nearby neighborhood of Adams Morgan. The park was designed and built between 1912 and 1940. This 12-acre (49,000 m2), formally landscaped site is officially part of the National Capital Parks Unit of the National Park System, and is administered by the superintendent of nearby Rock Creek Park. Meridian Hill Park is bordered by 15th, 16th, W, and Euclid streets NW, and sits on a prominent hill 1.5 miles (2.4 km) directly north of the White House. Since 1969, the name "Malcolm X Park" has been used by many in honor of minister and activist Malcolm X.

Meridian Manor is an historic structure located in the Columbia Heights neighborhood in the Northwest Quadrant of Washington, D.C. George T. Santmyers designed the structure in the Colonial Revival style. It exemplifies the speculative middle class apartment buildings that were constructed in Washington in the 1910s and 1920s near the 14th Street streetcar line. It was listed on the National Register of Historic Places in 2001.

The David White House is a historic house at 1459 Girard Street NW in Washington, D.C. A National Historic Landmark, it was the home of geologist David White (1862–1935) from 1910 to 1925. White had a longtime association with the United States Geological Survey (USGS), and performed groundbreaking research on peat and petroleum geology.

The Cuban Embassy in Washington, D.C. is the diplomatic mission of Cuba to the United States of America. It is located at 2630 16th Street Northwest, in the Adams Morgan neighborhood. The building was originally constructed in 1917 as the Cuban embassy, and served in that capacity until the United States severed relations with Cuba in 1961. On July 1, 2015, US President Barack Obama announced the formal restoration of diplomatic relations between the United States and Cuba. The building resumed its role as the Cuban Embassy on July 20, 2015.

The Embassy of the Republic of Poland in Washington, D.C. (Polish: Ambasada Rzeczypospolitej Polskiej w Waszyngtonie) is the diplomatic mission of the Republic of Poland to the United States of America. The chancery is located at 2640 16th Street NW, Washington, D.C.Marek Magierowski is the ambassador since November 2021.

Embassy of Lithuania in Washington, D.C., is the diplomatic mission of the Republic of Lithuania to the United States. It is located at 2622 16th Street Northwest, Washington, D.C., in the Adams Morgan neighborhood.