Mega Cities Rise Up
Cities are constantly growing in population making up for some mega cities. There are 23 mega cities with populations of over 10 million people. The top three most populated cities are Tokyo, Mumbai, and Mexico City. It is estimated that about 1.5 billion people in the world live in 600 different cities. Also, by 2025, the top five most populated cities in the world will all be in Asia. Africa is expected to have 50% of its population living in cities by 2050. The population is growing and so are the cities.