20 Biggest Metropolitan Areas in the World in 2015

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5. Karachi

Estimated Population: 23 500 000+

The largest city of Pakistan and the capital of the province of Sindh takes the fifth spot on this list with more than two million over India’s Delhi. This metropolis, as well as being one of the most populous is known as “the city that never sleeps”.

Asianet-Pakistan / Shutterstock.com

Asianet-Pakistan / Shutterstock.com

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