USA HISTORY

Detailed explanation-1: -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.

Detailed explanation-2: -In the government of New York City, the heads of about 50 city departments are appointed by the mayor, who also appoints several deputy mayors to oversee entire city agencies and handle specific tasks and projects within their designated portfolios.

Detailed explanation-3: -The UN is headquartered on international territory in New York City, and has other main offices in Geneva, Nairobi, Vienna, and The Hague (home to the International Court of Justice).

Detailed explanation-4: -Headquarters: New York City, USA.