Northeast Corridor Commission

The American Psychological Association (APA) is the largest scientific and professional organization of psychologists in the United States, with over 146,000 members, including scientists, educators, clinicians, consultants, and students. It has 54 divisions—interest groups for different subspecialties of psychology or topical areas. The APA has an annual budget of around $125 million.

Swampoodle was a neighborhood in Washington, D.C. on the border of Northwest and Northeast in the second half of 19th and early 20th century. This neighborhood is no longer known as Swampoodle and has been replaced in large part by NoMa.

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.

Owney (ca. 1887 – June 11, 1897), was a terrier mix adopted in the United States as a postal mascot by the Albany, New York, post office about 1888. The Albany mail professionals recommended the dog to their Railway Mail Service colleagues, and he became a nationwide mascot for nine years (1888–1897). He traveled over 140,000 miles throughout the 48 contiguous United States and around the world as a mascot of the Railway Post Office and the United States Postal Service. He was the subject of commemorative activities, including a 2011 U.S. postage stamp.

The Postal Square Building (formerly the City Post Office) served as the main post office for the city of Washington, D.C., from the building's completion in 1914 to 1986. It now houses the National Postal Museum, the Bureau of Labor Statistics, and offices of the United States Senate. Architect Daniel Burnham designed the building in the Beaux-Arts style—the same style Burnham used for the neighboring Union Station. Construction for the Postal Square Building began in 1911 on a lot near the Capitol. Planning began with a 1901 proposal by the Senate Parks Commission. The commission called for three buildings to mark the northern end of the Capitol complex. While the first two buildings in the plan, Union Station and the Postal Square Building, were completed early in the 20th century, the 1901 plan would not be fully implemented until the completion of the Thurgood Marshall Federal Judiciary Building in 1992. A major renovation from 1929 to 1935 expanded the building for increased mail processing and service capacity. By the 1950s, renovations had removed many of the Beaux-Arts features of the building. The main hall and lobby area only showed traces of their former grandiose design with modernist elements replacing the Beaux-Arts style. The building received another major renovation in the early 1990s, during which the original appearance of the lobby and main hall area was restored. The National Postal Museum moved into the building in 1993 following the renovations. The Bureau of Labor Statistics and the Capitol City Brewing Company also moved into the building during the 1990s. (Capitol City Brewing Company closed in 2011 to make room for an expansion of the National Postal Museum.)

H Street is a set of east–west streets in several of the quadrants of Washington, D.C. It is also used as an alternate name for the Near Northeast neighborhood, as H Street NW/NE is the neighborhood's main commercial strip.

The National Guard Association of the United States was founded in 1878 as a congressional lobbying organization for National Guard issues. A member of the Military Coalition, NGAUS lobbies on behalf of over 400,000 officers and enlisted members who comprise the membership of the organization. It has been partially or solely responsible for winning a number of benefits, ranging from health to retirement, for National Guard forces nationwide. It also operates NGAUS Insurance Trust, which provides products to full-time federal technicians, including life insurance. It also operates the National Guard Educational Foundation, which focuses on educating the public about the National Guard.

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 museum is a member of the United States Army Museum System.

Swampoodle Grounds aka Capitol Park (II) was the home of the Washington Nationals baseball team of the National League from 1886 to 1889. The name refers to the one-time Swampoodle neighborhood of Washington. The ballfield was located on a block bounded by North Capitol Street NE and tracks (west); F Street NE (south); Delaware Avenue NE (east); and G Street NE (north); a few blocks north of the Capitol building. Spectators faced toward the south and could see the Capitol dome. They could also see the McDowell and Sons Feed Mill, visible behind right field in the picture, and which was across F Street to the south. The club moved a few blocks north, from Capitol Park (I) to the Swampoodle location, upon joining the National League. Local papers reported that the new grounds had more space and a more favorable lease. The papers often referred to the new grounds as Capitol Park, even as the previous Capitol Park was still in use, under the same name, for various types of entertainment. When referencing the previous park, the reports would general specify its location, to minimize possible confusion. Portions of the site were eventually annexed as the site of the Union Station and of the Main Post Office, which is now the National Postal Museum. Swampoodle Grounds held 6,000. The Washington Statesmen folded after the end of the 1889 season.

Union Station is a Washington Metro station in Washington, D.C., on the Red Line. It has a single underground island platform. The station is located in the Northeast quadrant of the city under the western end of Union Station, the main train station for Washington, where connections can be made to Amtrak intercity trains, as well as Virginia Railway Express and MARC commuter rail trains to suburbs in Virginia, Maryland, and West Virginia. The station was originally named "Union Station–Visitor Center" but when the National Visitor Center there failed, it was renamed Union Station. One or two pylons still read "Union Station-Visitor Center", and a number of older stations still display this name on signage. Service began on March 27, 1976, with the opening of the Red Line. It is the busiest station in the Metrorail system, averaging 29,197 passengers per weekday as of May 2017.

The 1953 Pennsylvania Railroad train wreck occurred on January 15, 1953, when a passenger and mail train from Boston to Washington DC (the Federal) failed to brake sufficiently on its approach to Union Station, Washington, jumping the platform and plunging through the floor of the concourse. There were no deaths, but 43 people were injured. The cause of the accident was a design flaw that allowed a brake-valve to close without human intervention.

The Holodomor Memorial to Victims of the Ukrainian Famine-Genocide of 1932–1933 was opened in Washington, D.C., United States, on November 7, 2015. Congress approved creation of the Holodomor Memorial in 2006.The memorial was built by the National Park Service and the Ukrainian government to honor the victims of the Ukrainian Famine-Genocide of 1932–33 and to educate the American public.The memorial, designed by Larysa Kurylas, is one of three monuments in Washington, D.C., designed or co-designed by women—the others being the Vietnam Veterans Memorial and the National 9/11 Pentagon Memorial.The memorial is located near the U.S. Capitol building at the intersection of North Capitol Street, Massachusetts Avenue, and F Street N.W. It is diagonal to the Smithsonian's National Postal Museum, about one block from Union Station.