Headquarters of the United Nations
https://en.wikipedia.org/wiki/Headquarters_of_the_United_Nations
United Nations Headquarters
http://www.aviewoncities.com/nyc/unitednations.htm
united nations headquarters nyc
https://www.google.hr/search?q=united+nations+headquarters+nyc&client=opera&hs=4wt&sa=X&biw=1745&bih=857&tbm=isch&tbo=u&source=univ&ved=0CCwQsARqFQoTCPjG0KOwl8gCFYl_LAodQj0Kpg
Gladwyn Jebb
https://en.wikipedia.org/wiki/Gladwyn_Jebb
was a prominent British civil servant, diplomat and politician as well as the Acting Secretary-General of the United Nations for a little over three months.
Trygve Lie
https://en.wikipedia.org/wiki/Trygve_Lie
Dag Hammarskjöld
https://en.wikipedia.org/wiki/Dag_Hammarskjöld
U Thant
https://en.wikipedia.org/wiki/U_Thant
Kurt Waldheim
https://en.wikipedia.org/wiki/Kurt_Waldheim
Javier Pérez de Cuéllar
https://en.wikipedia.org/wiki/Javier_Pérez_de_Cuéllar
Boutros Boutros-Ghali
https://en.wikipedia.org/wiki/Boutros_Boutros-Ghali
Kofi Annan
https://en.wikipedia.org/wiki/Kofi_Annan
Ban Ki-moon
https://en.wikipedia.org/wiki/Ban_Ki-moon
Secretary-General of the United Nations
https://en.wikipedia.org/wiki/Secretary-General_of_the_United_Nations#Secretaries-General
The Secretary-General of the United Nations (UNSG) is the head of the United Nations Secretariat, one of the principal organs of the United Nations. The Secretary-General also acts as the de facto spokesperson and leader of the United Nations.