Headquarters of the United Nations has part(s) United Nations Secretariat Building
Other buildings
While outside of the complex, the headquarters also includes two large office buildings that serve as offices for the agencies and programmes of the organization. These buildings, known as DC-1 and DC-2, are located at One and Two United Nations Plaza respectively. DC1 was built in 1976. There is also an identification office at the corner of 46th Street, inside a former bank branch, where pre-accredited diplomats, reporters, and others receive their grounds passes. UNICEF House (3 UN Plaza) and the UNITAR Building (807 UN Plaza) are also part of headquarters. In addition, the Church Center for the United Nations (777 UN Plaza) is a private building owned by the United Methodist Church as an interfaith space housing the offices of several non-governmental organizations. The Office of Internal Oversight Services (OIOS) is located at 380 Madison Avenue.
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