Capitol South station

The O'Neill House Office Building was a congressional office building located near the United States Capitol at 301 C Street SE in Washington, D.C. Initially known as House Office Building Annex No. 1, it was named after former Speaker of the House Thomas "Tip" O'Neill in 1990.The building was originally constructed as a hotel in 1947 and operated as the Hotel Congressional, with furnished apartments rented by the month, plus meeting rooms and restaurants. Congress acquired the building in 1957 and leased it back to the hotelier. The Leadership Conference on Civil Rights coordinated lobbying efforts for passage of the Civil Rights Act of 1964 from Room 410 of the hotel. In 1972, it was turned into an office building and renamed House Office Building Annex No. 1. House Judiciary Committee staffers worked out of the building during the Watergate investigation. From 1983 to 2001, the third and fourth floors of the building were residences for the dormitory for House Pages. The building was declared structurally unsound and demolished in 2002. A parking lot is currently on the site.

Bullfeathers of Capitol Hill is a restaurant and bar on 410 First Street SE in Washington, D.C., in the Capitol Hill neighborhood. Its name comes from President Theodore Roosevelt's favorite euphemism for "bullshit." The logo of the restaurant is a depiction of Roosevelt. It was founded in 1979 by Gordon King. It has achieved some degree of fame for its association with congressional staffers and members who have been patrons, and as a place where "lobbyists take Hill staffers to down martinis.". It has since reopened under new ownership. The new owners are Tony Harris and William Walls. The restaurant has been variously described as "one of Capitol Hill's key upscale watering holes" and "a favorite House-side dive.". Bullfeathers, Capital Hill is also the location of the Annual SWTA Legislative Breakfast.The political website PoliticsPA named it to their list of restaurants frequented by politicians.The restaurant also figured in the Mark Foley scandal. Reports indicated that Mark Foley approached a former 18-year-old intern at Bullfeathers and asked for an email.

The Law Library of Congress is the law library of the United States Congress. The Law Library of Congress holds the single most comprehensive and authoritative collection of domestic, foreign, and international legal materials in the world. Established in 1832, its collections are currently housed in the James Madison Memorial Building of the Library of Congress. Law staff rely on and utilize 2.9 million volumes of primary legal sources, 102.18 million microforms, 99,000 reels of microfilm, 3.18 million pieces of microfiche, and 15,600 tangible electronic resources (CD-ROMs and other disks), making it is the largest law library in the world.

The C Street Center is a three-story brick townhouse in Washington, D.C. operated by The Fellowship. It is the former convent for nearby St. Peter's Church. It is located at 133 C Street, SE, behind the Madison Building of the Library of Congress and a short distance from the United States Capitol, Republican National Committee, Democratic National Committee and House of Representatives Office Buildings. The structure has 12 bedrooms, nine bathrooms, five living rooms, four dining rooms, three offices, a kitchen, and a small chapel.The facility houses mostly Republican members of Congress but prominent Democrats including Hillary Clinton are members of this organization. Prior to its current use, the building housed the offices of Ralph Nader's Congress Watch, Critical Mass Energy Project, and the Tax Project.

The Cannon House Office Building, often called the "Old House Office Building," completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux-Arts style of architecture. It occupies a site south of the United States Capitol bounded by Independence Avenue, First Street, New Jersey Avenue, and C Street S.E. In 1962 the building was named for former Speaker of the United States House of Representatives Joseph Gurney Cannon.

The First Street Tunnel is a two-track, soft-earth tunnel built between 1904 and 1906 by the Washington Terminal Company to serve as the southern approach to Union Station in Washington, D.C. Currently owned by Amtrak, it connects to lower-level tracks and platforms at the station, passes under Capitol Hill and connects to the RF&P Subdivision (CSX Transportation) and Long Bridge, offering through railway service to Alexandria, Virginia, and points west and south. Unlike the Northeast Corridor tracks north of Union Station, the tunnel tracks are not electrified, so southbound trains leaving Union Station must switch to diesel locomotives before entering the tunnel. Exiting Union Station, the tunnel runs due south under First Street NE and SE before curving to the southwest under a parking lot near the Capitol South Metro station. Its southern portal is just east of South Capitol Street at the intersection of D Street SE and New Jersey Avenue SE. The tunnel's height is 17 feet (5.2 m).

The Mary Pickford Theater, named in honor of silent film star Mary Pickford, is the "motion picture and television reading room" of the United States' Library of Congress in Washington, D.C. It is on the third floor of the Library of Congress Madison building in downtown Washington. The theater screens classic and contemporary movies and television shows, often organized by theme. All screenings are free, though reservations must be made, as the theater accommodates only 64 people. In 2020, showings were postponed due to the COVID-19 pandemic.

The James Madison Memorial Building is one of three United States Capitol Complex buildings that house the Library of Congress. The building was constructed from 1971 to 1976, and serves as the official memorial to United States Founding Father and president James Madison. It is located between First and Second Streets SE on Independence Avenue, in Washington, D.C.. In addition to various book and multimedia collections, it houses the United States Copyright Office, which is under the jurisdiction of the Librarian of Congress.

St. Peter's Church, also referred to as St. Peter's on Capitol Hill, is a Roman Catholic church located on Capitol Hill in Washington, D.C., within the Archdiocese of Washington. Founded in 1820, St. Peter's is the second oldest Catholic parish in the City of Washington (but not the District of Columbia). The church building was originally constructed in 1889. However, it was destroyed by a fire in 1940 and rebuilt. The church's motto is, "To be a tangible manifestation of Christ in the community."The church's proximity to the United States Capitol Building attracts many members of Congress and congressional staffers, and its location on the House side of the Capitol has made it commonly known as the House church, while its counterpart on the Senate side, St. Joseph's, is known as the Senate church.

Carolina On The Hill is a historic condominium building located on Capitol Hill in Washington, DC. Its address is 101 N. Carolina Ave, SE, Washington, DC, 20003.

The Richards Building was the headquarters of the U.S. Coast and Geodetic Survey from 1871 to 1929. It was located in Washington, D.C., on a block immediately south of the United States Capitol. It was demolished in 1929 to construct the Longworth House Office Building.

Watterson House is a Federal rowhouse, located at 224 2nd Street, Southeast, Washington, D.C., on Capitol Hill. It was placed on the National Register of Historic Places on January 17, 1992. It was named for George Watterston, a Librarian of Congress. It was the headquarters of the Cato Institute from 1982 to 1993. It is the headquarters of the National Indian Gaming Association.