Cité Soleil (Haitian Creole: Site Solèy; English: Sun City) is an extremely impoverished and densely populated commune located in the Port-au-Prince metropolitan area in Haiti.
Cité Soleil originally developed as a shanty town and grew to an estimated 200,000 to 400,000 residents, the majority of whom live in extreme poverty. The area is generally regarded as one of the poorest and most dangerous areas of the Western Hemisphere and it is one of the biggest slums in the Northern Hemisphere.

Source: wikipedia.org