Embassy of Guinea, Washington, D.C.

The Bissau-Guinean ambassador in Washington, D. C. is the official representative of the Government in Bissau to the Government of the United States and concurrently accredited in Mexico City and Ottawa.

The Mauritanian ambassador in Washington, D. C. is the official representative of the Government in Nouakchott to the Government of the United States.

The Embassy of Mauritania in Washington, D.C. is the Islamic Republic of Mauritania's diplomatic mission to the United States. It is located at 2129 Leroy Place N.W. in Washington, D.C.'s Kalorama neighborhood.The Ambassador is Mohamedoun Daddah.

The Moldovan ambassador in Washington, D. C. is the official representative of the Government in Chișinău to the Government of the United States.

The Embassy of Moldova in Washington, D.C. is the diplomatic mission of the Republic of Moldova to United States. It is located at 2101 S Street, Northwest, Washington, D.C. in the Kalorama neighborhood.The embassy provides consular services to Moldova citizens residing or traveling in the US and Canada.

The Fazl Mosque in Washington, D.C. was established by the Ahmadiyya Muslim Community in 1950 and is the first mosque in the U.S. capital of Washington, D.C. Its full title is the American Fazl Mosque, which helps to distinguish it from its sister mosque, the Fazl Mosque, London, both of which were the first mosques in the capitals of the U.S. and the U.K., respectively. Located a few minutes from the White House, and neighboring several embassies, Fazl Mosque opened seven years prior to the Islamic Center of Washington and is the longest serving mosque in the nation's capital.Sir Zafrullah Khan, who in addition to serving as president of the United Nations General Assembly and President of the International Court of Justice at the Hague, was a companion of Mirza Ghulam Ahmad (1835–1908), as well as a notable scholar of Islam. The mosque served as the headquarters of the Ahmadiyya movement in the United States from 1950 until 1994, when it was moved to Baitur Rehman Mosque in Silver Spring, Maryland.The American Fazl Mosque was built as a private residence in 1912. The Colonial Revival-style building is designated as a contributing property to the Sheridan-Kalorama Historic District, listed on the National Register of Historic Places.

The Churchill Hotel Near Embassy Row is a hotel located at 1914 Connecticut Avenue NW in Washington, D.C., United States. The Beaux-Arts style building was erected in 1902 as The Highlands apartment house, designed by local architect Arthur B. Heaton. It was later renovated into a hotel, but still kept some of its historic features. According to the Churchill Hotel, its rooms contain elements of the original building. The Churchill is a member of Historic Hotels of America, the official program of the National Trust for Historic Preservation.

The Rwandan Ambassador to the United States is the official representative of the Government of Rwanda to the Government of the United States and is head of the Embassy of Rwanda in Washington, D.C.

Major General George B. McClellan is an equestrian statue in Washington, D.C. that honors politician and Civil War general George B. McClellan. The monument is sited on a prominent location in the Kalorama Triangle neighborhood due to efforts made by area residents. The statue was sculpted by American artist Frederick William MacMonnies, a graduate of the École des Beaux-Arts whose best known work is a statue of Nathan Hale in New York City. MacMonnies was chosen to design the statue following a lengthy competition organized by a statue commission, led by then Secretary of War William Howard Taft. The monument was dedicated in 1907, with prominent attendees at the ceremony including President Theodore Roosevelt, New York City mayor George B. McClellan, Jr., politicians, generals and thousands of military personnel. The sculpture is one of eighteen Civil War monuments in Washington, D.C., which were collectively listed on the National Register of Historic Places in 1978. The bronze statue, which rests on a tall granite base adorned with emblems and bronze reliefs, is surrounded by a small public park bounded by California Street, Columbia Road and Connecticut Avenue NW. The monument and park are owned and maintained by the National Park Service, a federal agency of the Interior Department.

The Russian Cultural Center (Russian: Российский центр науки и культуры в Вашингтоне) is a museum and building in Washington, D.C., supporting Russian culture in the United States and preserving its causes and beliefs. It calls itself, "the official home of Russian culture in the United States," and hosts public events featuring visiting Russian musicians and artists to foster better relations and understanding between the U.S. and Russia. The center is operated by Rossotrudnichestvo, an autonomous agency of the Russian Foreign Ministry.The building was a private residence before it was purchased by the Soviet government in 1957. It was initially used as a school for the children of embassy staff, then housed the Soviet consulate in the 1970s and 1980s. In 1998, the building was designated as the Russian Cultural Center by a bilateral agreement. The center opened on December 10, 1999, with an announcement by Valentina Tereshkova, the first woman in space.Since at least 2001, the center has organized all-expenses-paid cultural exchange trips to Russia for young Americans. The trips included lodging at luxury hotels and meetings with Russian officials.

The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international fields within the Earth and space sciences. The geophysical sciences involve four fundamental areas: atmospheric and ocean sciences; solid-Earth sciences; hydrologic sciences; and space sciences. The organization's headquarters is located on Florida Avenue in Washington, D.C.

The Lothrop Mansion, also known as the Alvin Mason Lothrop House, is an historic home, located at 2001 Connecticut Avenue, Northwest, Washington, D.C., in the Kalorama neighborhood. Until a scale-back in Russian diplomatic presence in 2017, the Lothrop Mansion housed offices for the Russian Trade Representative.