Embassy of Oman, Washington, D.C.

The Omani ambassador in Washington, D. C. is the official representative of the Government in Muscat, Oman to the Government of the United States.

The Guyanese ambassador in Washington, D. C. is the official representative of the Government in Georgetown, Guyana to the Government of the United States and is regularly acretitated as Permanent Representative to the Organization of American States.

The Embassy of the Co-operative Republic of Guyana to the United States of America is located at 2490 Tracy Place, NW, Washington, DC. The Permanent Mission of Guyana to the Organization of American States (OAS) is also located there. The Embassy of Guyana was established in 1966, and the Permanent Mission in 1991. Riyad Insanally, CCH was appointed Guyana's eighth Ambassador to the US and fourth Permanent Representative to the OAS. In executing and promoting the foreign policy objectives of the Government of Guyana, the Embassy seeks to: Uphold Guyana's sovereignty and territorial integrity; Strengthen political and economic relations with the United States and other nations represented in Washington, DC and at the OAS; Promote and facilitate investment, trade, business and tourism opportunities for Guyana; and Attend to the consular needs of Guyanese residents in the US, as well as supporting Guyanese nationals wishing to remigrate.In addition to the Embassy in Washington, DC, there is a Consulate General in New York City and Honorary Consuls in Atlanta, Georgia; Miami, Florida; and Los Angeles, California.

The Islamic Center of Washington is a mosque and Islamic cultural center in Washington, D.C. It is located on Embassy Row on Massachusetts Avenue just east of the bridge over Rock Creek. When it opened in 1957, it was the largest mosque in the Western Hemisphere.

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

The Embassy of Turkey in Washington, D.C. is the diplomatic mission of the Republic of Turkey to the United States. It is located at 2525 Massachusetts Avenue, Northwest in the Embassy Row neighborhood.

Mustafa Kemal Atatürk is an outdoor sculpture of Mustafa Kemal Atatürk, installed outside the Embassy of Turkey, Washington, D.C. (1625 Massachusetts Avenue), in the United States. It is one of two statues in Embassy Row depicting Kemal Atatürk; the other was installed outside the Turkish Ambassador's Residence (1606 23rd Street NW), on the periphery of Sheridan Circle, in 2013.

The Embassy of Lesotho in Washington, D.C. is the diplomatic mission of the Kingdom of Lesotho to the United States. It is located at 2511 Massachusetts Avenue, Northwest, Washington, D.C., in the Embassy Row neighborhood.The Ambassador is Gabriel Sankatana Maja.

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

The Embassy of Japan in Washington, D.C. (在アメリカ合衆国日本国大使館, Zai Amerika Gasshūkoku Nihonkoku Taishikan) is the diplomatic mission of Japan to the United States. It is located at 2520 Massachusetts Avenue NW, Washington, D.C., in the Embassy Row neighborhood. In addition to serving as Japan's diplomatic mission in the United States, the embassy provides Japanese consular services to residents of the District of Columbia, Virginia, and Maryland.

The Charles C. Glover Memorial Bridge or Massachusetts Avenue Bridge in Northwest Washington, D.C. conveys Massachusetts Avenue over Rock Creek and Rock Creek Park. The concrete arch bridge was constructed in 1939–41 and has a length of 386.2 feet (117.7 m).

The Lindens, also known as the King Hooper House, is an historic three-story house located in the Kalorama Heights neighborhood of Washington, D.C. It is the oldest house in Washington (although it was not originally built there) and has been listed on the National Register of Historic Places since 1969.The house was built in Danvers, Massachusetts, in 1754 as a grand summer home for Robert "King" Hooper, a leading shipowner and merchant in Marblehead, Massachusetts, who sided with the Tories before the Revolutionary War and lent the house for four months to Thomas Gage, the reviled British governor. Hooper lost the house to creditors. After passing through several other owners, including one who used it as a boardinghouse, the house was purchased in 1860 by Francis Peabody Jr., who restored and added to it. It was again sold in 1933 to antiques dealers Israel Sack and Leon David, who sold the paneled drawing room to a Kansas City museum. The remainder of the house was sold the next year for about US$13,000 (equivalent to $263,331 in 2021) to George and Miriam Morris, who were seeking a period house to showcase their collection of early American furniture. The Morrises had the house dismantled and shipped to Washington, with the pieces numbered, in six railroad boxcars. Under the direction of the key architect at Colonial Williamsburg, it was slowly reassembled from 1935 to 1938 on a concrete foundation, supported by steel beams. Over the next 45 years, some 50,000 visitors passed through the house, greeted by the owners in period costume. In 1983 it was sold to Norman and Diane Bernstein, who modernized and updated the kitchen and plumbing. At that time, some of the furnishings were auctioned for $2.3 million at Christie's. In 2007 it was resold for $7.2 million, and in 2016 the house was listed for sale again.The house measures 8,250 square feet (766 m2), with 11 fireplaces, and has nearly 12-foot (3.7 m) ceilings, interior columns, stenciled floors, and wallpaper designed in Paris in the early 1800s.