Embassy of Moldova, Washington, D.C.

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 Guinea in Washington, D.C. is the Republic of Guinea's diplomatic mission to the United States. It is located at 2112 Leroy Place Northwest, Washington, D.C., in the Kalorama neighborhood. The Ambassador is Blaise Chérif.

Meeting House of the Friends Meeting of Washington (Friends Meeting House) is a historic Quaker meeting house at 2111 Decatur Place in NW Washington, DC. The Colonial Revival building was added to the National Register of Historic Places in 1990.

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 Embassy of Costa Rica in Washington, D.C. is the diplomatic mission of Costa Rica to the United States. It is located at 2114 S Street Northwest, Washington, D.C. in the Kalorama neighborhood.The embassy also operates Consulates-General in Atlanta, Austin, Texas, Chicago, Miami, New Orleans, Los Angeles, Philadelphia, San Antonio, San Diego, San Francisco, Tampa, and New York City.The ambassador is Catalina Crespo Sancho.In 1974, the Embassy received one of the three pre-Columbian stone spheres of Costa Rica that came to the United States as part of an agreement that had been negotiated in 1971 between American art specialist Samuel Adams Green and the Museo Nacional de Costa Rica together with the Costa Rican Ministry of Foreign Affairs and Ministry of Culture. The two larger spheres went to Fairmount Park in Philadelphia, where they were displayed in 1976 together with other monumental sculptures, before going into storage at the warehouses of the Fairmont Park Association. The one in Washington D.C. is displayed in the streetside yard of the Embassy building, as a symbol of national identity.

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 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 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.

Restaurant Nora was a restaurant owned by chef Nora Pouillon in Washington, D.C., and was America's first certified organic restaurant.

The Real World: D.C., (occasionally known as The Real World: Washington D.C.), is the twenty-third season of MTV's reality television series The Real World, which focuses on a group of diverse strangers living together for several months in a different city each season, as cameras follow their lives and interpersonal relationships. It is the fifth season of The Real World to be filmed in the Mid-Atlantic States region of the United States. The season featured eight people who lived in a house in Dupont Circle. Washington, D.C. was officially announced as the location for the newest season on June 10, 2009. Filming began on July 2, 2009 and completed on October 12, 2009. The season's December 30, 2009 premiere was watched by 1.9 million viewers. The March 31, 2010 season finale was watched by 1.1 million viewers, the record low at the time for a season finale of The Real World. The finale was immediately followed with a reunion special, The Real World: Washington D.C. Reunion. Overall the season averaged 1.5 million viewers a week and consisted of 14 episodes. According to MTV's President of Programming, Tony DiSanto, "The charged atmosphere of Washington D.C., the center of our country's social and political change, will provide an electric setting for this next season of The Real World. We are thrilled to be filming our classic franchise in the heart of where history is being made ... it adds a whole new dimension to the great characters and drama our viewers expect and love from The Real World." Washington, D.C. Mayor Adrian Fenty welcomed the production, pointing to the impact of young people on the national scene.The Washington Capitals hockey team, singer Melissa Etheridge and Washington Post cartoonist Tom Toles make guest appearances this season, in which they interact with the cast. President Barack Obama also appears in two episodes in which cast member Andrew Woods, an aspiring cartoonist, attends a press conference with Washington Times senior correspondent Joe Curl as part of Woods' internship with the newspaper, and when cast member and LGBT rights activist Mike Manning attends the October 10, 2009 Human Rights Campaign dinner at which Obama spoke. Manning also meets with Congressman Jared Polis of Colorado and Congressman James P. Moran of Virginia during the course of his work for the HRC.

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.