There are many candidates, many big imperialist nations have been genocidal to unbelievable levels (British, Spanish, Americans), from WWII we know that Germans, and especially Austrians are extremely vile (but not as vile as Croatians, who were champions of barbarity for centuries, and their Ustashe nazi collaborators killed hundreds of thousands of people with cruelty that surpasses anything that happened in Holocaust). If you count lack of meaningful contributions to society, than there are a few nations to look to, but if you look at a combination, perhaps the worst nation in the world is Albania.
Albania is for at least 100 years the most backward part of Europe. It is also center of drug smuggling, people and organ trafficking, and has the most primitively barbaric mafia on the continent. Barbarity, terrorism (many Muslim Albanians are linked to Al-Qaeda) and lack of contributions to humanity mark them as truly the lowest scum that walks the Earth.
World's Worst Director - 2012 World's Worst Parents - 2.2 was released on: USA: 31 March 2013
England
World's Worst Director - 2012 World's Worst Rival 2-1 was released on:USA: 24 March 2013World's Worst Director - 2012 World's Worst Rival - 2.1 was released on:USA: 24 March 2013
The Worst Journey in the World was created in 1922.
I am the worst guitarist in the world. I don't know how to play.
World's Worst Director - 2012 World's Worst Interview 1-9 was released on: USA: 8 July 2012
World's Worst Director - 2012 World's Worst Props 2-4 was released on: USA: 14 April 2013
World's Worst Director - 2012 World's Worst Cast 1-10 was released on: USA: 8 July 2012
World's Worst Director - 2012 World's Worst Assistant 2-3 was released on: USA: 7 April 2013
World's Worst Director - 2012 World's Worst Photo Shoot - 1.6 was released on: USA: 20 May 2012
World's Worst Director - 2012 World's Worst Editing 1-8 was released on: USA: 24 June 2012
World's Worst Director - 2012 World's Worst Therapy 2-5 was released on: USA: 21 April 2013