History of the United Nations $8.5 million donation from John D. Rockefeller, Jr. The UN headquarters officially opened on January 9, 1951, although construction was not formally completed until October 9, 1952. Under special agreement with the United States, the UN enjoys certain diplomatic privileges and immunities, but generally the laws of New York City, New York State, and the United States apply. While the principal headquarters of the UN remain in New York City, major agencies base themselves in Geneva, The Hague, Vienna, Nairobi and elsewhere. The basic constitutional makeup of the United Nations has changed little, though vastly increased membership has altered the
United Nations Avenue United Nations Avenue United Nations Avenue (also known by its abbreviation, U.N. Avenue) is a major thoroughfare in Manila, Philippines. A commercial, residential and industrial artery, the avenue runs east–west through the near-center of the city linking Ermita and Rizal Park with the eastern districts. It is home to the World Health Organization Western Pacific headquarters. U.N. Avenue begins at a fork in Quirino Avenue Extension and Paz Mendoza Guazon Street, just west of Pandacan. It continues through the area of Tanque and Isla de Provisor in northern Paco district passing several rows of warehouses and a few institutional buildings.