One of the largest and fastest growing cities in the world is New York City Tokyo,Japan Arizona and Memphis.
Sao Paulo in Brazil is one of the largest and fastest growing cities in the world.
Tokyo, Japan is the world's largest metropolitan area that has a population over 14 million. It is also one of the fastest-growing metropolitan areas in the world.
Mexico City
Mexico City
"Bamakó, population 1,690,471 (2006), is the capital and largest city of Mali, and currently estimated to be the fastest growing city in Africa (6th fastest in the world)."**Referenced from: http://en.wikipedia.org/wiki/BamakoIn west Africa
America
Shenzhen, China (apex)
it is banglore
Dhaka, Bangladesh.
It is Philadelphia
hyderabad
Phoenix, Arizona was the fastest growing city in the United States in 1948. It experienced a significant population increase during that time due to factors such as the post-World War II economic boom and increased migration to the area.