List of ambassadors of the Democratic Republic of the Congo to the United States

Waggaman-Ray Commercial Row consists of four historic structures located in the Northwest Quadrant of Washington, D.C.: 1141, 1143, 1145 Connecticut Avenue, N.W. The buildings are two and three stories and utilize restrained classical architecture to project an image of sophisticated elegance. The buildings feature planar facades with classical design motifs in low-relief.They were listed on the National Register of Historic Places on February 24, 1995.

The Mayflower Hotel is a historic hotel in downtown Washington, D.C., located on Connecticut Avenue NW. It is two blocks north of Farragut Square (one block north of the Farragut North Metro station). The hotel is managed by the Autograph Collection Hotels division of Marriott International. The Mayflower is the largest luxury hotel in the District of Columbia, the longest continuously operating hotel in the Washington D.C. area, and a rival of the nearby Willard InterContinental and Hay-Adams Hotels. The Mayflower is known as the "Grande Dame of Washington", the "Hotel of Presidents", and as the city's "Second Best Address" (the White House is the first)—the latter sobriquet attributed to President Harry S. Truman (a frequent guest at the hotel). Today it is a four-star hotel.

Connecticut Connection is a high-rise building located at 1101 Connecticut Avenue NW in the United States capital of Washington, D.C. The building stands at a height of 150 feet (46 m) and has 12 stories. Construction of the building was completed in 1978. The architect of the building was Skidmore, Owings & Merrill, who created the postmodern design and aesthetic of the building.

The Propane Education and Research Council is a nonprofit that provides leading propane safety and training programs and invests in research and development of new propane-powered technologies. PERC is operated and funded by the propane industry. PERC programs benefit a variety of markets including transportation, agriculture, commercial landscaping, residential, and commercial building. PERC was authorized by the U.S. Congress with the passage of the Propane Education and Research Act (PERA), signed into law on Oct. 11, 1996. PERC is governed by a 21-member board appointed by the National Propane Gas Association and the Gas Processors Association. Each association appoints nine Council members and they cooperate in the appointment of three public members. PERC's operations and activities are funded by an assessment levied on each gallon of propane gas at the point it is odorized or imported into the United States.

Farragut North station is an underground Washington Metro station in Washington, D.C., on the Red Line. Farragut North serves downtown Washington and is located just north of Farragut Square. It lies at the heart of the business district on Connecticut Avenue, with two entrances at L Street and one at K Street. Adjacent to the L Street entrance was a food court which has its own stairway to the surface; the food court closed in 2007 and was later replaced with a Results Gym location. It is the third-busiest station in the Metro system, averaging 22,949 passengers per weekday as of May 2017. Service began on March 27, 1976.

The Philanthropy Roundtable is a nonprofit organization that advises conservative philanthropists.

The Elizabeth Arden Building is an historic building, located at 1147 Connecticut Avenue, Northwest, Washington, D.C., in downtown Washington, D.C.

1000 Connecticut Avenue is a high-rise building located in the United States capital of Washington, D.C. This building replaced a previous structure, built in 1956, which was demolished in the winter of 2007.

The Demonet Building is composed of a historic townhouse and adjoining office building on the southeast corner of Connecticut Avenue and M Street NW in Washington, D.C. Constructed in 1880, the townhouse is the last Victorian residence on Connecticut Avenue between Dupont Circle and Farragut Square that has not been significantly altered. It features an octagonal tower topped by a dome with cartouche windows. Following a multi-year legal battle to demolish the townhouse, which had been added to the District of Columbia Inventory of Historic Sites in 1979, the Demonet Building and adjoining lot were sold for what was then a record price for downtown real estate. The adjoining office building, designed by Skidmore, Owings & Merrill, was completed in 1984. The building's namesake, John Charles Demonet, established a confectionery business on Pennsylvania Avenue in 1848. During the next several decades, he and his family grew the business into a successful company that included catering services. It was a confectionery supplier for the White House. In the early 1900s, the business was moved to Connecticut Avenue, a fashionable residential area at the time. It became a commercial pioneer of what was nicknamed the Fifth Avenue of Washington, D.C. After the business was moved a few blocks north in 1927, the Demonet family continued to own the building. It was rented to various retailers. The family sold the building in 1979. Since the modern addition was constructed, several organizations have owned the property, the most recent being an affiliate of the Qatari royal family.

Third Way is a Washington, D.C.–based public policy think tank founded in 2005. Third Way develops and advocates for policies that it claims represent "modern center-left ideas".Third Way was honoured as the 2013 North American Think Tank of the Year by Prospect, a British monthly current affairs magazine, for its "original, influential, and rigorous work on the most pressing challenges facing people, governments, and businesses". The think tank's supporters and advocates include Democratic politicians, other center-left think tanks, and individual donors. Third Way's funding also partially comes from philanthropy, foundations and personal donations. In the past decade, Third Way has been directly involved in policy issues such as the benefits of energy innovation, student accountability measures under the Every Student Succeeds Act, deficit reduction, proposals to reform Medicare and Medicaid, the repeal of "Don't ask, don't tell," and new trade accords with Korea, Colombia, and Panama.

The Center for the National Interest is a Washington, D.C.-based public policy think tank. It was established by former U.S. President Richard Nixon on January 20, 1994, as the Nixon Center for Peace and Freedom.The group changed its name to The Nixon Center in 1998. In 2001 the center acquired The National Interest, a bimonthly journal, in which it tends to promote the realist perspective on foreign policy. The center's president is Dimitri K. Simes. In March 2011, the center was renamed the Center for the National Interest (CFTNI or CNI). The change was due to a conflict between leadership of the Center and the Richard Nixon Family Foundation and was part of "a long-running battle over former President Richard Nixon’s complicated legacy," with Foundation members criticizing the center's president for "attacking their party’s presidential candidate, John McCain, for his denunciations of Russia’s invasion of Georgia," and "discomfort at the Center over the Foundation’s obsession with re-litigating Watergate and its legacy." Despite its separation from the Nixon Foundation, the center's leadership expressed its desire to "continue its forward-looking application of Nixon's foreign policy principles to today's international environment."According to the 2014 Global Go To Think Tank Index Report (Think Tanks and Civil Societies Program, University of Pennsylvania), the center is number 43 (of 60) in the "Top Think Tanks in the United States". According to the 2019 Global Go To Think Tank Index Report, the center is number 46 (of 107) in the "Top Think Tanks in the United States". In 2006 it had an annual budget of $1.6 million.In 2016, the think tank hosted Donald Trump's first major foreign policy address, leading to one of its fellows being fired for criticizing the organization's decision in an op-ed article. The Trump campaign's interactions with Simes and the Center became part of the 2017-2019 Special Counsel investigation. The Mueller report ultimately found no evidence of wrongdoing by Simes or the center, but the investigation reportedly hurt the think tank financially.

Nuns of the Battlefield is a public artwork made in 1924 by Irish artist Jerome Connor, located at the intersection of Rhode Island Avenue NW, M Street, and Connecticut Avenue NW, in Washington, D.C., United States. A tribute to the more than 600 nuns who nursed soldiers of both armies during the American Civil War, it is one of two monuments in the District that mark women's roles in the conflict. It is a contributing monument to the Civil War Monuments in Washington, D.C., listed on the National Register of Historic Places. In 1993, it was surveyed for the Smithsonian Institution's Save Outdoor Sculpture! program.