History of UN City The history of UN City begins in 2002, when the idea for a UN City in Copenhagen was first conceived. Then a total of six UN agencies were present in the Danish capital: WHO, UNICEF, UNDP, WFP, UNFPA, and UNOPS. Other UN agencies have since set up operations in Copenhagen. 1957 World Health Organization (WHO) European Regional Office 1963 UNICEF Supply Division 1993 UN Development Programme (UNDP) 1996 UNOPS 2000 World Food Programme (WFP) 2001 UN Population Fund (UNFPA) 2009 Construction of UN City begins 2013 UN City opens on 4 July UN City in Copenhagen is today the sixth biggest UN City in the Western world with 2,000 employees across 10 UN agencies and two campuses. Read more about UN City here and the United Nations here.