Lyon Park Historic District

The Columbia Gardens Cemetery is a cemetery located in the Ashton Heights Historic District of Arlington, Virginia

Fort Tillinghast was a small lunette that the Union Army constructed in Alexandria County (now Arlington County), Virginia, as part of the Civil War defenses of Washington (see Washington, D.C., in the American Civil War). Fort Tillinghast stood about 0.6 miles away from Arlington House, the Union-occupied estate of Confederate General Robert E. Lee.

The Charles Richard Drew House is a historic house at 2505 1st Street in Arlington, Virginia. A vernacular early 20th-century dwelling, it is of national significance as the home from 1920 to 1939 of Charles Richard Drew (1904–50), an African-American physician whose leadership on stockpiling of blood plasma saved lives during World War II. The National Park Service designated the house as a National Historic Landmark in 1976 in response to a nomination by the Afro-American Bicentennial Corporation.

The Lee Gardens North Historic District, also known as Woodbury Park Apartments, is a national historic district located at Arlington County, Virginia. It contains thirty attached masonry structures forming seven contributing buildings in a residential neighborhood in South Arlington. The garden apartment complex was designed by architect Mihran Mesrobian according to the original standards promoted by the Federal Housing Administration (FHA). The Lee Gardens North complex was completed in 1949–1950. The brick buildings are in the Colonial Revival style, with some fenestration elements influenced by the Art Deco and Moderne style.It was listed on the National Register of Historic Places in 2004.

The Arlington County Fire Department (ACFD) provides fire, emergency medical, and allied public safety services for Arlington County and the City of Falls Church in Virginia, USA. It is highly regarded within the profession as an innovator and leader in enhancing the industry. Among its many firsts are the hiring of the first female career firefighter in the world in 1974 and partnering with the United States Public Health Service to develop America's first Metropolitan Medical Strike Team to respond to the consequences of a chemical, biological or radiological terrorist attack.The ACFD operates nine stations and is a signatory to an automatic regional response plan with neighboring Fairfax County as well as the city of Alexandria, and participates in a regional mutual aid pact with the District of Columbia and the Maryland counties of Montgomery and Prince George’s. Ronald Reagan Washington National Airport, also in Arlington County, fields a fire department as part of the Metropolitan Washington Airports Authority Fire and Rescue Department and works closely with the county's fire service. The 300-plus employees of the Fire Department provide services through a combination of education, prevention and effective response to fire, medical and environmental emergencies. The Arlington County Fire Department holds a Class 2 Rating from the Insurance Services Organization, the second-highest rating given to a Virginia fire department, and one of only three such ratings awarded in the state. This rating helps the local community by bringing lower insurance rates to homeowners and businesses.

Clarendon is an urbanized, upper-class neighborhood in Arlington County, Virginia, located between the Rosslyn area and the Ballston area. It was named after Edward Hyde, 1st Earl of Clarendon, a leading statesman and historian of the English Civil War. The main thoroughfares are Wilson Boulevard (one-way westbound) and Clarendon Boulevard (one-way eastbound).

Little Saigon is the Vietnamese ethnic enclave in the Clarendon neighborhood of Arlington, Virginia, which served the large refugee population that immigrated after the Fall of Saigon on April 30, 1975. One of many Little Saigons in the U.S., this neighborhood near Washington, D.C., became a hub of Vietnamese commerce and social activity, and reached its peak during the late 1970s to the early 1980s. The opening of the Clarendon station on the Washington Metro's Orange Line led to new development, generating higher rents, and businesses closed or relocated, notably to the nearby Eden Center.

US Post Office-Arlington is a historic post office building located in the Clarendon neighborhood of Arlington, Virginia. It was designed and built in 1937, and is one of a number of post offices designed by the Office of the Supervising Architect of the Treasury Department under Louis A. Simon. The building is a one-story, pentagonal shaped brick building in the Georgian Revival style. Atop the entrance portico is a dome that rises above the buildings flat roof and is supported by four fluted limestone piers. The interior features murals by Auriel Bessemer picturing Native Americans on Analostan Island, Captain John Smith and the Native Americans, tobacco picking by the Lee mansion, Robert E. Lee receiving his Confederate commission in Richmond, a picnic at Great Falls, polo players at Fort Myer, and a contemporary harvest at an apple orchard.It was listed on the National Register of Historic Places on February 7, 1986.

The Leadership Institute is a 501(c)(3) non-profit organization located in Arlington, Virginia that teaches "political technology."The institute was founded in 1979 by conservative activist Morton Blackwell. Its mission is to "increase the number and effectiveness of conservative activists" and to "identify, train, recruit and place conservatives in politics, government, and media."The Leadership Institute offers 44 types of training seminars at its Arlington headquarters, around the United States, and occasionally in foreign countries. In 2014, the Institute trained 18,182. Since its 1979 founding, the Leadership Institute has trained more than 161,271 students. Alumni include Grover Norquist, Ralph Reed, Jeff Gannon, Senator Mitch McConnell, Vice-President Mike Pence, James O'Keefe, new members of the 113th Congress, and elected officials in all 50 states.

The Crossing Clarendon, formerly Market Common Clarendon, is an outdoor mixed-use development featuring retail, restaurants, and residential buildings located along Clarendon Boulevard in the Clarendon neighborhood of Arlington, Virginia. The complex was developed by McCaffery Interests, and opened in November 2001. The center features stores for fashion, electronics, groceries (Whole Foods Market), and dining. It is a few blocks away from both Clarendon Metrorail station and the Courthouse neighborhood of Arlington. TIAA-CREF bought Market Common Clarendon from McCaffery in 2002. In 2016, Regency Centers and AvalonBay Communities bought the complex for $406 million. In 2021, Regency renamed it The Crossing Clarendon.

Clarendon station is a side platformed Washington Metro station in the Clarendon neighborhood of Arlington, Virginia, United States. The station was opened on December 1, 1979, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). The station serves the Orange and Silver Lines. Over 4,000 commuters use Clarendon station every day.

The Institute for Law, Science and Global Security in the Department of Government at Georgetown University was established to promote teaching and research in the area of intersection between international law and international relations. The Institute sponsors undergraduate and graduate courses and runs a Master's Program in International Law and Global Security. The Institute seeks to inform the public policy debate about the nature, role and importance of international law as it connected to issues of science and global security. To this end, it sponsors a series of specific programs including the Program on Non-Proliferation Law and Policy, which is jointly run with the James Martin Center of the Monterey Institute of International Studies. Most recently, the Institute has begun a special initiative in the area of cyber security. Among the participants in this initiative have been former Director of the Central Intelligence Agency General Michael Hayden, Siobhan Gorman, national security correspondent of The Wall Street Journal, and Suzanne Spaulding, former General Counsel for the Senate Select Committee on Intelligence. Since its creation, the Institute has also sponsored events with a variety of other speakers, including Paul D. Clement, former Solicitor General of the United States, Bill Richardson, the Governor of New Mexico, Neal Katyal, Deputy Solicitor General of the United States and legal counsel to former detainee Salim Hamdan, and David H. Remes, a former partner at Covington & Burling and currently representing detainees in the Guantanamo Bay detention camps. The Institute was founded by Professors Christopher C. Joyner and Anthony Clark Arend, and was initially called The Institute for International Law and Politics. It is currently directed by Professor Joyner, and Professor Catherine Lotrionte serves as the Associate Director of the Institute. Amit Yoran, former Chief of the National Cyber Security Division at the Department of Homeland Security and Phillip A. Karber serve on the Board of Advisers of the Institute. From 2007 to 2009, Brendan P. Geary—previously an Associate Attorney at Gibson, Dunn & Crutcher LLP and currently an Attorney in the Department of Justice's National Security Division—served as the Institute's William V. O'Brien Fellow.