http://www.un.org/

http://en.wikipedia.org/wiki/United_Nations

http://www.un.org/en/

http://www.unsystem.org/

http://www.unog.ch/

http://www.answers.com/topic/united-nations

http://www.unep.org/

http://www.undp.org/

http://unfccc.int/index.html

http://www.sourcewatch.org/index.php?title=United_Nations

http://www.un-az.org/

http://www.harvardmun.org/

http://topics.nytimes.com/top/reference/timestopics/organizations/u/united_nations/index.html?inline=nyt-org

https://www.unodc.org/

http://www.ehow.com/how_2155852_visit-united-nations.html

http://search.barnesandnoble.com/Act-of-Creation/Stephen-C-Schlesinger/e/9780813332758

http://www.unausa.org/

http://en.wikipedia.org/wiki/Portal:United_Nations

http://www.ft.com/cms/s/0/d9345496-4a84-11dc-95b5-0000779fd2ac,dwp_uuid=a955630e-3603-11dc-ad42-0000779fd2ac.html

http://www.expedia.com/pubspec/scripts/eap.asp?GOTO=HOTSEARCH&SearchType=Place&SearchArea=Attraction&PlaceName=United+Nations+European+Headquarters&eapid=13290-1&semcid=13290-1&kword=ATT&kend=1