What are the four largest cities in the world?

The world's four largest cities are:

1, Paris: France's largest city, is the center of France's political, economic, cultural and commercial center, the capital of Paris has been built for more than 1,400 years, Paris is the world's famous capital of the arts, but also a world conference city, many national meetings held here.

2, Tokyo: the ancient name of Edo, in the Tokugawa Shogunate era is one of Japan's major cities. Today, the entire metropolitan area of Tokyo's population of more than 30 million people, known as Asia's largest city, Tokyo has the world's largest railroad transportation hub, the underground railroad can reach almost all the important areas, railroads, highways, air and sea transportation formed a well-connected transportation network to the country and the world.

3, London: in 2018, London in the world city size rankings with New York in the first place, is also one of the world's largest financial centers, but his influence is longer than New York, for hundreds of years, in politics, economy, culture, arts and entertainment are at the top of the list, and at the same time in the world's most expensive city in the price of housing is ranked third.

4, New York: America's largest city and first port, sitting in the heart of the greater New York metropolitan area, one of the world's largest economic centers. GDP is up to 900 billion U.S. dollars, the equivalent of more than 6 trillion yuan, New York is the most populous city in the United States, there are about 8.49 million people, but he also has the world's most developed rapid transit system.