Building of the United Nations Headquarters in Lower Midtown. Between the 42nd and 48th Street at 1st Avenue. (Guided tours Mon-Fri 9:45 to 16:45 / adult $ 16US / $ 11US seniors and students / children 5-12yrs $ 9US - not sold in advance / not supported under 5 years) 33 East 47th Street. Tel 212-963-8687. In the headquarters of the United Nations met all members once a year in the General Assembly, in addition to the Security Council should meet on cabinet crisis. One of his greatest achievements was signing in 1948 the Universal Declaration of Human Rights. The land on which is not owned by a single country, but of all Member States of the Organization, the United Nations have their own security force and its own fire department, issue their own postage stamps and have activities in the six official languages: Arabic, Chinese, Spanish, French, English and Russian. The 7.2 acres are located in the main building and advice are also gardens filled with roses and some interesting monuments like the statue of peace donated by the former Yugoslavia, or the Peace Bell, cast with 60 coins donated by countries and Japan. The main headquarters of the United Nations Organization is a distinctive complex in New York City that served as headquarters of the United Nations since its completion in 1950. It is located in the vicinity of Turtle Bay in the eastern part of Midtown Manhattan. Although located in New York City, the territory occupied by the United Nations headquarters, is considered international territory and its borders are First Avenue to the west, the Forty-second Street to the south, the forty-eighth to the north and East York River to the east. The United Nations Headquarters in New York was built in 1949 and 1950 along the East River, in 17 acres of land purchased from the foremost New York at the time, William Zeckendorf, the purchase was arranged by Nelson Rockefeller, after an initial offer of putting it on the Rockefeller family estate of Kykuit was rejected as being too far from Manhattan. The eight and a half million dollars from the purchase of the land was financed by his father John D. Rockefeller, Jr., who donated to the city. The chief architect of the complex was Wallace Harrison, architect-adviser of the family.