The United Nations headquarters is located in the Turtle Bay neighborhood of Midtown Manhattan in New York City, USA. It occupies 17 to 18 acres of land bordered by First Avenue to the west, 42nd Street to the south, 48th Street to the north, and the East River to the east. The specific address is 760 United Nations Plaza, Manhattan, New York. It is an international zone under the administration of the United Nations through a treaty agreement with the United States government, though physically situated in the U.S. The complex includes several buildings such as the Secretariat, General Assembly, Conference buildings, and the Dag Hammarskjöld Library.