Most Congested Cities in the United States: Boston, Washington, Chicago, New York City, Los Angeles, Seattle, Pittsburgh, San Francisco, Philadelphia, Portland.
The 9 Most Congested Cities in the World: Moscow (Russia), Istanbul (Turkey), Bogota (Colombia), Mexico (City Mexico), Sao Paulo (Brazil), London (United Kingdom), Rio de Janeiro (Brazil), Boston (United States), Saint Petersburg (Russia)
Map of Ukraine, World map, Wikimapia map, Map of Canada , Germany map, US map