One United Nations Plaza

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 Andorran Permanent representative to the Headquarters of the United Nations has his residence in New York City is also accredited as Ambassador to the governments in the United States of America, Canada and the United Mexican States. Andorra established relations with the United States in February 1995. It was by means of an exchange of letters. The Andorran government requested to establish full diplomatic relations and the Secretary of State reciprocated by appointing our Consul General in Barcelona as representative of the United States to Andorra for diplomatic and consular affairs. In 1998, with the change of U.S. Ambassador in Madrid, it was agreed the U.S. government would accredit the same Ambassador to Andorra.

The Burundian Permanent Representative to the United Nations in New York is the official representative of the Government of Burundi to the Headquarters of the United Nations.

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.

The Church Center for the United Nations is a private building founded, owned, and operated by the United Methodist Church as an interfaith space housing the offices of various religions as well as several non-governmental organizations. It is at 777 United Nations Plaza in New York City, across the street from, but not part of, the United Nations Headquarters complex. The 12-story center is most known for its first-floor Chapel at the United Nations, which has a modernist design. The chapel has long been a popular site for wedding ceremonies, especially ones between couples of different religious or national backgrounds. Other events and conferences have been held at the chapel and in the church center as well.

Two United Nations Plaza is a mixed-use building in Turtle Bay, Manhattan that was designed for the United Nations by Kevin Roche & John Dinkeloo.

Three United Nations Plaza is a mixed-use building in Turtle Bay, Manhattan that was designed for the United Nations by Kevin Roche. It is located across First Avenue from the UN headquarters in Midtown Manhattan of New York City. Three UN Plaza, or UNICEF Headquarters is on the south side of 44th Street. The United Nations Development Corporation or UNDC is a quasi-public institution that developed and presently operates One, Two, and Three UN Plaza. UNDC operates all of Three UN Plaza. As the name suggests, UNDC's principal tenants are the United Nations, the UN Development Programme, UNICEF, and other missions to the UN. Three UN Plaza was built in 1986. UNICEF is its only tenant. Three UN Plaza (also referred to as "Three"), which opened in 1987, is a 15-story office building located on the south side of 44th Street between First and Second Avenues, across from One and Two UN Plaza. It is next door to another landmark building, the Beaux-Arts Apartments. Three's property includes approximately 205,000 square feet (19,000 m2) of office space, with an adjacent public plaza of approximately 5,000 square feet (460 m2). Three UN Plaza is leased exclusively to UNICEF for its world headquarters. It was built in postmodern design. The properties of One, Two, and Three UN Plaza are located on the East Side of Midtown Manhattan along the East River, in an area of Manhattan known as Turtle Bay.

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 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.

The Permanent Mission of Turkey to the United Nations is the diplomatic mission of Turkey to the United Nations in New York. The Mission is represented by the Permanent Representative. The current Turkish Permanent Representative to the United Nations is Feridun Sinirlioğlu.

The Beaux-Arts Apartments are a pair of apartment towers on 307 and 310 East 44th Street in the East Midtown and Turtle Bay neighborhoods of Manhattan in New York City. Designed by Raymond Hood and Kenneth Murchison, the Beaux-Arts Apartments were constructed between 1929 and 1930. The complex was originally designed with 640 apartments. The Beaux-Arts Apartments consist of two towers on East 44th Street; number 307 is on the north sidewalk while number 310 is on the south sidewalk. The two towers are 16 stories and are faced with limestone at the base, dark brick between windows on the upper stories, and light brick between each story. The top four stories of both buildings contain numerous setbacks, which form terraces for the upper-story units. The interiors largely consist of studio apartments measuring 22 by 13 feet (6.7 by 4.0 m) on average; they are lit by large windows on the outside. The ground floor of the south building, number 310, contains a cafe. The apartment complex was built just east of the Beaux-Arts Institute of Design, which had moved to the area in 1928. Plans for the apartment complex were announced in February 1929, with the buildings being financed by stock issues rather than mortgage loans. The buildings opened to residents in January 1930 during the Great Depression. The Beaux-Arts Apartments avoided foreclosure due to their financing arrangement and were initially popular among businesswomen. The buildings were sold to the Brodsky Organization in 1973 and the New York City Landmarks Preservation Commission designated the complex as a city landmark in 1988.

Tudor City is an apartment complex located on the southern edge of Turtle Bay on the East Side of Manhattan in New York City, near Turtle Bay's border with Murray Hill. It lies on a low cliff, which is east of Second Avenue between 40th and 43rd Streets and overlooks First Avenue. Construction commenced in 1926,: 18  making it the first residential skyscraper complex in the world.Tudor City was one of the first, largest, and most important examples of a planned middle-class residential community in New York City.: 10  It is named for its Tudor Revival architecture.