Union Station (Washington Metro)

A coffer in architecture is a series of sunken panels in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels was often used as decoration for a ceiling or a vault, also called caissons ("boxes"), or lacunaria, so that a coffered ceiling can be called a lacunar ceiling: the strength of the structure is in the framework of the coffers.

An island platform is a station layout arrangement where a single platform is positioned between two tracks within a railway station, tram stop or transitway interchange. Island platforms are popular on twin-track routes due to pragmatic and cost reasons. They are also useful within larger stations where local and express services for the same direction of travel can be provided from opposite sides of the same platform thereby simplifying transfers between the two tracks. An alternative arrangement is to position side platforms on either side of the tracks. The historical use of island platforms depends greatly upon the location. In the United Kingdom the use of island platforms is relatively common when the railway line is in a cutting or raised on an embankment, as this makes it easier to provide access to the platform without walking across the tracks.

Massachusetts Avenue is a major diagonal transverse road in Washington, D.C., and the Massachusetts Avenue Historic District is a historic district that includes part of it.

Washington Union Station is a major train station, transportation hub, and leisure destination in Washington, D.C. Designed by Daniel Burnham and opened in 1907, it is Amtrak's headquarters, the railroad's second-busiest station, and North America's ninth-busiest railroad station. The station is the southern terminus of the Northeast Corridor, an electrified rail line extending north through major cities including Baltimore, Philadelphia, New York City, and Boston, and the busiest passenger rail line in the nation. In 2015, it served just under 5 million passengers.

The Red Line is a rapid transit line of the Washington Metro system, consisting of 27 stations in Montgomery County, Maryland, and Washington, D.C., in the United States. It is a primary line through downtown Washington and the oldest and busiest line in the system. It forms a long, narrow "U", capped by its terminal stations at Shady Grove and Glenmont.

Grosvenor–Strathmore is a rapid transit station on the Red Line of the Washington Metro in North Bethesda, Maryland. Grosvenor–Strathmore is the last above-ground station for Glenmont-bound Red Line trains until NoMa-Gallaudet U; south of the station, trains cross over the Capital Beltway before descending underground. It is one of a number of stations on the Rockville Pike corridor in Montgomery County.

Shady Grove is a Washington Metro station in Derwood in Montgomery County, Maryland, United States. The station was opened on December 15, 1984 as part of a four-stop extension of the line from Grosvenor–Strathmore station out to Shady Grove. The station is operated by the Washington Metropolitan Area Transit Authority (WMATA).

Judiciary Square is a Washington Metro station in Washington, D.C. on the Red Line. It is located in the Judiciary Square neighborhood in the Northwest quadrant of the city, with entrances at 4th and D Street and 5th and F Street. It serves the many courthouses and municipal buildings in the area. The 5th and F Street entrance is located in the National Law Enforcement Officers Memorial, which incorporates the escalators and elevators into its architecture.

Silver Spring is a Washington Metro and MARC Train station in Montgomery County, Maryland on the Red Line and Brunswick Line. On the Metro, Silver Spring is the first station in Maryland of the eastern end of the Red Line, and is the second-busiest Metro station in Maryland after Shady Grove. North of this station, it goes underground as it heads towards the underground terminus of Glenmont.

Glenmont is a Washington Metro station in Montgomery County, Maryland on the Red Line. It is the northern terminus of the Red Line.

NoMa–Gallaudet U is an elevated, island platformed station on the Washington Metropolitan Area Transit Authority's (WMATA) Metro system. It is located on the same embankment as the Amtrak tracks into Union Station. It serves the Red Line, and is situated between Union Station and Rhode Island Avenue–Brentwood stations. NoMa–Gallaudet U is located near the intersection of New York Avenue and Florida Avenue in Northeast Washington, D.C. The station is within the NoMa neighborhood, which is both residential and commercial, and the station itself is in a commercial district on Florida Avenue. The station opened under the name New York Ave–Florida Ave–Gallaudet U on November 20, 2004, as both the system's first infill station and as the first to be built with a mix of public and private funds. Additionally, a portion of the Metropolitan Branch Trail was completed as part of its construction.

CNN is a multinational news channel and website headquartered in Atlanta, Georgia, U.S. Founded in 1980 by American media proprietor Ted Turner and Reese Schonfeld as a 24-hour cable news channel, and presently owned by the Manhattan-based media conglomerate Warner Bros. Discovery (WBD), CNN was the first television channel to provide 24-hour news coverage and the first all-news television channel in the United States.

Columbus Circle, also known as Union Station Plaza or Columbus Plaza, is a traffic circle at the intersection of Delaware, Louisiana and Massachusetts Avenues and E and First Streets, Northeast in Washington, D.C. It is located in front of Union Station right next to the grounds of the United States Capitol. Union Station and its access roads interrupt this circle on one side, forming an arc.

The Dirksen Senate Office Building is the second office building constructed for members of the United States Senate in Washington, D.C., and was named for the late Minority Leader Everett Dirksen from Illinois in 1972.

The Federal Energy Regulatory Commission (FERC) is the United States federal agency that regulates the transmission and wholesale sale of electricity and natural gas in interstate commerce and regulates the transportation of oil by pipeline in interstate commerce. FERC also reviews proposals to build interstate natural gas pipelines, natural gas storage projects, and liquefied natural gas (LNG) terminals, in addition to licensing non-federal hydropower projects.

The Folger Shakespeare Library is an independent research library on Capitol Hill in Washington, D.C., United States. It has the world's largest collection of the printed works of William Shakespeare, and is a primary repository for rare materials from the early modern period (1500–1750) in Britain and Europe. The library was established by Henry Clay Folger in association with his wife, Emily Jordan Folger. It opened in 1932, two years after his death.

The Georgetown University Law Center is the law school of Georgetown University, a private research university in Washington, D.C. It was established in 1870 and is the largest law school in the United States by enrollment and the most applied to, receiving more full-time applications than any other law school in the country.

Gonzaga College High School is a private Catholic college-preparatory high school for boys in Washington, D.C. Founded by the Jesuits in 1821 as the Washington Seminary, Gonzaga is named in honor of Aloysius Gonzaga, an Italian saint from the 16th century. Gonzaga is the oldest boys' high school in the District of Columbia.

The Philip A. Hart Senate Office Building is the third U.S. Senate office building, and is located on 2nd Street NE between Constitution Avenue NE and C Street NE in Washington, D.C., in the United States. Construction began in January 1975, and it was first occupied in November 1982. Rapidly rising construction costs plagued the building, creating several scandals. The structure is named for Philip Hart, who served 18 years as a senator from Michigan. Accessed via a spur of the United States Capitol Subway System, the building features a nine-story atrium dominated by massive artwork, and a large Central Hearing Facility which provides television facilities as well as extensive seating.

The Japanese American Memorial to Patriotism During World War II is a National Park Service site to commemorate the contributions of American citizens of Japanese ancestry and their parents who patriotically supported the United States despite unjust treatment during World War II.

The National Guard Memorial Museum is a military museum hosted by the National Guard Educational Foundation. It is located in northwestern Washington, DC, near the National Postal Museum, Union Station and Georgetown University Law Center. Covering 5600 square feet, the museum features six different thematic galleries all relating to the National Guard of the United States:Militia Era The National Guard Comes of Age The Citizen Soldier in World War II Cold War Era National Guard in the Modern Era Closing Sequence.

The National Postal Museum, located opposite Union Station in Washington, D.C., United States, covers large portions of the Postal history of the United States and other countries. It was established through joint agreement between the United States Postal Service and the Smithsonian Institution and opened in 1993.