The United Nations headquarters is located along the East River in Manhattan, new york, USA. It was built in June 1949 10 to June 195 1, including four buildings: Secretariat Building, Conference Hall Building, General Assembly Hall and Hammarskj? ld Library. Among them, the Secretariat Building is located in the center and is the core building of the United Nations Headquarters.

In addition, there are United Nations Offices in Geneva, Switzerland and Europe, Vienna, Austria, Africa and Asia in Nairobi, Kenya and Bangkok, Thailand.