The land for the headquarters was purchased for the good of the organization by a donation from John D. Rockefeller Jr. On the land, the complex was built with several buildings. The Secretariat Building, the main building of the complex, and is identified by its impressive facade, made of greenish glass. It is 156 meters tall and has 39 floors.
Another building in the complex is that of the General Assembly Building of the United Nations. The purpose of this body is to serve as a forum for discussion and planning of peace, economic and human rights programs. The third building you'll see here is the Dag Hammarskjöld Building, the UN Library Building.
Outside the buildings, in the open space, you can see gardens and statues. The big square constitutes an inseparable view for many visitors who arrive here.
The complex was designed by 11 international architects, headed by Wallace K. Harrison. In the halls and spaces inside building you can see a variety of art pieces, mosaics, frescoes, and unique carpets that have been collected from around the world.