The Most Populated Cities of the World. World Megacities - Nations Online Project
Most populated cities of the world
___ Megacities of the World
Visit the Most Populated Cities on Earth
This is a virtual travel to the  world's most populous cities like      New York, Tokyo, Shanghai, London, Hong Kong, Chicago, Buenos Aires, Bangkok, Seoul, Los Angeles, Mexico City and so on.
Metropolis (Mexico city) - Photo: Omar91
 
Which is the largest city on the planet, this issue is still unresolved but sometimes the subject of small talk. On your next casual conversation you may impress your audience when you state that by far the largest  city is Chongqing , because most certainly nobody ever had heard of that city.
Chongqing in southwest China is one of the emerging Megacities  with a population of more than 32 million people, sprawled over an area of 82,400 km² (this is twice the size of Switzerland with  41,285   km²). Chongqing carved out  of Sichuan province in 1997, is de facto a Chinese province with the status of a provincial-level municipality like Shanghai , Beijing and Tianjin .
And this should be the largest? Actually Chongqing's core population is about 7.5 million.
The largest, the biggest, or the most populous cities?
In many languages this terms are interchangeable, meaning the largest city of a country is also the most populous.
In the chart below there they are, the largest cities in the world, ranked by the population of a city's urban/metropolitan area.
What is a City?
The challenge is, ranking these cities is like to compare apples and oranges.
The common ground is: there is a city and there must be people, so lets count them. The problem begins with the definition of a city, easy you say?
A build-up of many buildings with many citizens is a city, right?
The largest city on Earth?
Lets look at Tokyo, often referred to as the largest city on Earth. But this is only  true when you take the built up area of Tokyo and add the urban expansion  of Chiba, Kawasaki, Sagamihara, Saitama, and Yokohama , which actually is Japan's second most populous city .
In the course of time, the fringe areas of all those cities have been growing together and now they form one massive conurbation, a sprawling ocean of buildings, and streets, with only virtual borders - and within, 28% of Japan ’s entire population.
To learn more about the cities, this page provides links to  the official city or municipality government website and/or to the official travel and tourism information site or other tourism guides related to a city. A city's websites usually publish also information for visitors and tourists about cultural events, festivals, sightseeing and much more.
Note: Population figures are for latest available years. The ranking is relative because of the diverse latest available figures of the city population.
External links will open in a new browser window.
page keywords: largest city in the world, mega cities of the world, world cities, world city population, most populated city in the world, city travel, city guides
 
Karachi Port and Naval bases
Karachi - largest city, business capital and the "Melting Pot of
Pakistan . The city is Pakistan's  principal seaport and capital of Sindh province, located in southern Pakistan at the coast of the Arabian Sea (Indian Ocean). According to Karachi Metropolitan Corporation: Karachi's 'metropolitan area along with its suburbs comprises the world's second most populated city'. Due to its migrant population the city grew almost 60 times since 1947, and there is nowadays still the unchecked and uncontrolled massive migration of workforce to Karachi that increases the city's population.
‘The population of Karachi has doubled in 15 years’
FOR MAJOR WORLD URBAN AREAS VARY SO GREATLY (dead link)
Glossary:
* City proper or City limit is a locality with legally fixed boundaries and an administratively      recognized urban status that is usually characterized by some form of local government, in other words, a city or town within its city limit without adjacent communities.
Urban area is the area that a city or town occupies, it is created and further developed by the process of urbanization.
** Urban agglomeration is an extended city or town area comprising the built-up area of a central place (usually a municipality) and any suburbs linked by continuous urban area, similar to Metropolitan Area.
Metropolitan area (Metro) is a large population center consisting of a large urban area  (core city) together with adjacent communities and satellite cities plus its adjacent zone of influence  including  rural areas.
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