Frankfurt, is the largest city in the German state of Hesse and the fifth-largest city in Germany, with a 2008 population of 670,000. The urban area had an estimated population of 2.26 million in 2001.[1] The city is at the centre of the larger Frankfurt/Rhine-Main Metropolitan Region which has a population of 5.3 million and [...]

Helsinki is the capital and largest city in Finland. It is in the southern part of Finland, on the shore of the Gulf of Finland, by the Baltic Sea. The population of the city of Helsinki is 579,016 (30 June 2009), making it the most populous municipality in Finland by a wide margin. The foreign-born [...]

New York is a state in the Mid-Atlantic and Northeastern regions of the United States and is the nation’s third most populous. The state is bordered by New Jersey and Pennsylvania to the south, and Connecticut, Massachusetts and Vermont to the east. The state has a maritime border with Rhode Island east of Long Island, [...]

London is the capital of both England and the United Kingdom. It has been an influential city for two millennia, and its history goes back to its founding by the Romans, then named Londinium. London’s core, the ancient City of London, still retains its limited medieval boundaries. However, since at least the nineteenth century, [...]

Mexico City is the capital city of Mexico It is the economic, industrial, and cultural center in the country, and the most populous city, with about 8,836,045 inhabitants in 2008. Greater Mexico City (Zona Metropolitana del Valle de México) incorporates 59 adjacent municipalities of Mexico State and 29 municipalities of the state of Hidalgo, according [...]

Here you can find an interesting and fast website with street map of the most important cities in the world.
Check it out and comment!
ciao!
http://www.gostreetmaps.com/

Andrew McKillop is a writer and consultant on oil and energy economics. Since 1975 he has worked in energy, economic and scientific organizations in Europe, Asia, the Middle East, and North America. These include the Canada Science Council, the ILO, European Commission, Organization of Arab Petroleum Exporting Countries, the UN Economic and Social Commission for [...]