Mayflower 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 Congolese ambassador in Washington, D. C. is the official representative of the Government in Democratic Republic of Congo to the Government of the United States.

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

The Somali Ambassador in Washington, D. C. is the official representative of the Government of in Mogadishu to the Government of the United States and Permanent Representative next the Headquarters of the United Nations.

The Puerto Rico Federal Affairs Administration (PRFAA)—Spanish: Administración de Asuntos Federales de Puerto Rico—is the executive agency of the government of Puerto Rico that represents the government of the island and its dependencies and municipalities before entities of or in the United States, including: The Federal Government of the United States Local and State Governments of the United States Public or Private Entities in the United StatesThe administration is similar to a State-Federal relations office and serves as the primary liaison between Puerto Rico's officials, the White House, Congress, and the federal agencies of the United States. Additionally, the office interacts with national organizations representing U.S. governors of other states such as the National Governors Association and the Southern Governors' Association. PRFAA also coordinates the lobbying efforts of the Puerto Rico executive branch in Washington, DC, and assists other Puerto Rican agencies and municipalities in grant-seeking efforts. The agency is also supposed to support the work of the Resident Commissioner of Puerto Rico but the relationship tends to be tumultuous when the governor and the resident commissioner come from different political parties. PRFAA's headquarters are located in Washington, D.C., at 1100 17th Street NW, while its Regional Office is located at 6925 Lake Ellenor Drive, Orlando, FL 32809.

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

The American Council of Trustees and Alumni (ACTA) is a conservative non-profit organization whose stated mission is to "support liberal arts education, uphold high academic standards, safeguard the free exchange of ideas on campus, and ensure that the next generation receives a philosophically rich, high-quality college education at an affordable price." ACTA does so primarily by calling on trustees to take on a more assertive governing role. It is based in Washington, D.C. and its current president is Michael Poliakoff.

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.

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 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.

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 National Museum of Catholic Art and History is a museum in Washington, D.C., focusing on Catholic art. It was formerly located in East Harlem, Manhattan, New York City. It was founded by Christina Cox in 1995.