1974 Speech of Sheikh Mujibur Rahman at the United Nations

The United Nations General Assembly Building is part of the headquarters of the United Nations in the Turtle Bay neighborhood of Manhattan in New York City. It contains the main assembly hall of the United Nations General Assembly, the main deliberative, policymaking, and representative organ of the United Nations (UN). The building was designed by a group of architects led by Wallace Harrison. It is connected with the other buildings in the UN headquarters, including the Secretariat Building and the Dag Hammarskjöld Library. Although the building is located within the United States, the site is under UN jurisdiction, so the building is exempt from some local regulations. The General Assembly Building is a four-story structure measuring 380 by 160 ft (116 by 49 m), with concave walls to the west and east, as well as a concave roof with a dome. The building contains a lobby for journalists and the general public to the north, as well as a lobby for delegates to the south. The central portion of the General Assembly Building is the General Assembly Hall, which has a seating capacity of 1,800 and measures 165 ft (50 m) long, 115 ft (35 m) wide, and 75 ft (23 m) tall. Each delegation has six seats in the hall, which face south toward a rostrum and a paneled semicircular wall with booths. The building also contains other spaces, including a delegates' lounge and the president of the United Nations General Assembly's offices on the second floor; a meditation room on the ground floor; and various shops and conference rooms in the basement. The design process for the United Nations headquarters formally began in February 1947. The General Assembly Building was the third building to be constructed at the headquarters, after the Secretariat and Conference buildings. Construction of the General Assembly Building's steelwork began in February 1950, and the building was formally dedicated on October 10, 1952. The rapid enlargement of the United Nations prompted the UN to modify the hall's layout several times in the 1960s. The General Assembly Hall was closed for renovation from 1978 to 1979 to accommodate additional delegations. The building started to deteriorate in the 1980s due to a lack of funding, and UN officials considered renovating the complex by the late 1990s, but the project was deferred for several years. As part of a wide-ranging project that began in 2008, the General Assembly Building was renovated from 2013 to 2014.

The Japanese Peace Bell is a bell donated to the United Nations Headquarters in New York City via the United Nations Association of Japan in June 1954. It is a bonsho (a Buddhist temple bell) that is 60 centimeters in diameter, 1 meter in height, and 116 kg in weight. It was established by Chiyoji Nakagawa. Ceremonies are held at the opening of the United Nations General Assembly in September each year as well as on the International Day of Peace on September 21, when the bell is rung in honor of world peace by the Secretary General, UN executives, and other public figures.

The United Nations is headquartered in Midtown Manhattan, New York City, United States, and the complex has served as the official headquarters of the United Nations since its completion in 1951. It is in the Turtle Bay neighborhood of Manhattan, on 17 to 18 acres (6.9 to 7.3 ha) of grounds overlooking the East River. Its borders are First Avenue on the west, East 42nd Street to the south, East 48th Street on the north, and the East River to the east. The complex consists of several structures, including the Secretariat, Conference, and General Assembly buildings and the Dag Hammarskjöld Library. The complex was designed by a board of architects led by Wallace Harrison and built by the architectural firm Harrison & Abramovitz, with final projects developed by Oscar Niemeyer and Le Corbusier. The term Turtle Bay is occasionally used as a metonym for the UN headquarters or for the United Nations as a whole.The headquarters holds the seats of the principal organs of the UN, including the General Assembly and the Security Council, but excluding the International Court of Justice, which is seated in The Hague. The United Nations has three additional subsidiary regional headquarters, or headquarters districts. These were opened in Geneva (Switzerland) in 1946, Vienna (Austria) in 1980, and Nairobi (Kenya) in 1996. These adjunct offices help represent UN interests, facilitate diplomatic activities, and enjoy certain extraterritorial privileges, but do not contain the seats of major organs. Although it is physically situated in New York City, the land occupied by the United Nations Headquarters and the spaces of buildings that it rents are under the sole administration of the United Nations and not the U.S. government. They are technically extraterritorial through a treaty agreement with the U.S. government. However, in exchange for local police, fire protection, and other services, the United Nations agrees to acknowledge most local, state, and federal laws.None of the United Nations' 15 specialized agencies (such as UNESCO) are located at the headquarters. However, some "autonomous subsidiary organs", such as UNICEF, have their headquarters at the UNHQ.

Non-Violence, also known as The Knotted Gun, is a bronze sculpture by Swedish artist Carl Fredrik Reuterswärd of an oversized Colt Python .357 Magnum revolver with its muzzle tied in a knot.

The Ark of Return is a memorial in New York City dedicated to the victims of the Transatlantic slave trade. It was designed by Rodney Leon, a Haitian-American architect, and installed in 2015. It is located at the Visitors' Plaza of the Headquarters of the United Nations.

The United Nations Secretariat Building is a skyscraper within the headquarters of the United Nations in the Turtle Bay neighborhood of Manhattan in New York City. It contains the offices of the United Nations Secretariat, the executive organ of the United Nations (UN). The building, designed in the International Style, is 505 ft (154 m) tall with 39 above-ground stories. It was designed by a group of architects led by Wallace Harrison. Although the building is located within the United States, the site is under UN jurisdiction, so the building is exempt from some local regulations. The Secretariat Building is designed as a rectangular slab measuring 72 by 287 ft (22 by 87 m); it is oriented from north to south and is connected with other buildings in the UN headquarters. The wider western and eastern elevations of the facade are glass curtain walls, while the narrower northern and southern elevations are made of marble. The Secretariat Building contains 889,000 sq ft (82,600 m2) of space. The lowest stories contain press offices, staff rooms, and other functions. The Secretariat offices are placed on the upper stories, which were originally arranged in a modular layout. The building also contains various pieces of artwork. The building's style has inspired the construction of other glass curtain wall buildings in Manhattan. The design process for the United Nations headquarters formally began in February 1947, and a groundbreaking ceremony for the Secretariat Building occurred on September 14, 1948. Staff started moving into the building on August 21, 1950, and it was completed in June 1951. Within a decade, the Secretariat Building was overcrowded, prompting the UN to build additional office space in the area. The building started to deteriorate in the 1980s due to a lack of funding, which was worsened by the fact that it did not meet modern New York City building codes. UN officials considered renovating the building by the late 1990s, but the project was deferred for several years. The Secretariat Building was renovated starting in 2010, and it reopened in phases from July to December 2012.

Single Form (BH 325) is a monumental bronze sculpture by the British artist Barbara Hepworth. It is her largest work, and one of her most prominent public commissions, displayed since 1964 in a circular water feature that forms a traffic island at the Headquarters of the United Nations in New York City, outside the United Nations Secretariat Building and the Dag Hammarskjöld Library. It is also the largest artwork cast by the Morris Singer foundry. Copies of a smaller version, Single Form (Memorial) (BH 314), are on public display outside the Johns Hopkins University's Paul H. Nitze School of Advanced International Studies in Washington, D.C. and in Battersea Park in London. The version in Battersea Park was granted a Grade II* listing in January 2016.

The Edgar J. Kaufmann Conference Center is a conference hall on the 12th floor of 809 United Nations Plaza in the Turtle Bay neighborhood of Manhattan in New York City. Designed by Finnish architect Alvar Aalto for professor Edgar Kaufmann Jr., it is one of four remaining designs by Aalto in the United States. The conference center was announced in 1962, during the construction of the Institute of International Education (IIE)'s headquarters, and was dedicated in December 1964. After the building was sold in 1998 to a group backed by Japanese financiers, there were several unsuccessful attempts to preserve the conference center as a New York City designated landmark. The conference center includes an elevator lobby, a reception hall, and two smaller conference rooms. The 4,500-square-foot (420 m2) reception hall contains birch rods, which Aalto characterized as resembling "spaghetti", as well as a sloping ceiling. Folding partition walls divided the reception hall from the smaller conference rooms. Aalto, working with his wife Elissa, designed various pieces of furniture within the conference center, which were largely manufactured in Finland.

The United States Mission to the United Nations (USUN) serves as the United States' delegation to the United Nations. USUN is responsible for carrying out the nation's participation in the world body. In 1947, the United States Mission was created by an act of Congress to assist the President and the Department of State in conducting United States policy at the United Nations. Since that time, USUN has served a vital role as the Department of State's UN branch. Today, USUN has approximately 150 people on staff who serve to represent the United States’ political, economic and social, legal, military, public diplomacy, and management interests at the United Nations. USUN is divided into the following sections: Executive; Washington; Political; Management and Reform; Economic and Social; Legal; Military Staff; Public Affairs; Host Country; Management; and Security. The United States Mission to the United Nations is located at 799 United Nations Plaza (between East 44th and 45th streets on First Avenue) across the street from United Nations Headquarters.

50 United Nations Plaza is a high-rise residential building in Manhattan, New York City. The 44-story tower was designed by the architectural firm Foster and Partners, making it the first residential building in the United States designed by Norman Foster, Baron Foster of Thames Bank. It includes 87 apartments.

The Millennium Hilton New York One UN Plaza is a 439-room hotel in the East Midtown neighborhood of Manhattan in New York City, United States. Designed by architect Kevin Roche of the firm Roche-Dinkeloo and opened in 1976, the hotel is located at 44th Street and First Avenue, near the headquarters of the United Nations. It occupies the top 13 stories of One and Two United Nations Plaza, a pair of 39-story skyscrapers also designed by Roche-Dinkeloo. The UN Plaza Hotel is owned by Millennium & Copthorne Hotels and operated by Hilton Hotels & Resorts. Part of the hotel's interior is a New York City designated landmark. One and Two United Nations Plaza, which respectively opened in 1975 and 1983, are both mixed-use buildings with offices on their lowest stories. The exteriors of both buildings have an angular massing bent at several places, as well as a facade made of glass. The ground story contains the lobby, which consists of a reception area, foyer, and ramp with mirrored surfaces and polygonal lamps. The ramp leads to the Ambassador Grill and Bar at the rear of the hotel; the grill is a popular meeting spot for United Nations diplomats. There are restaurants and meeting spaces on the second story and guest rooms on the 27th through 39th stories. In addition, the hotel contains a swimming pool and an indoor tennis court. The United Nations Development Corporation (UNDC) developed the hotel, which was owned by the New York City government and operated by Hyatt. The hotel opened on June 8, 1976, with 288 rooms on the top 13 stories of One UN Plaza. The UN Plaza Hotel was further expanded in 1984 after the completion of Two UN Plaza. The hotel was popular among UN diplomats and was consistently profitable in the first two decades of its operation. The New York City government sold the hotel in 1997 to Regal Hotels International, and Millennium & Copthorne Hotels took over the hotel in 1999, renovating it two years later. The hotel was further renovated in the 2010s, during which the Ambassador Grill and the lobby were protected as landmarks. The UN Plaza Hotel became part of the Hilton brand in 2017.

The Turkish House (also called Turkevi Center) is a 171-metre-high (561 ft), 36-floor skyscraper located at 821 United Nations Plaza in Midtown Manhattan, New York City. Turkish House serves as the headquarters of multiple Turkish diplomatic missions in New York, as well as a center of Turkish cultural activity.