Mega-city (over 10 million inhabitants)

Mega-cities (over 10 million inhabitants)

Lima is the capital and the largest city of Peru. It is located in the valleys of the Chillón, Rímac and Lurín rivers, in the central coastal part of the country, overlooking the Pacific Ocean. Together with the seaport of Callao, it forms a contiguous urban area known as the Lima Metropolitan Area. With a population of more than 10 million, Lima is the most populous metropolitan area of Peru and the third-largest city in the Americas (as defined by "city proper"), behind São Paulo, and Mexico City. The metropolitan area around Lima has a population of more than 12 million.

Shangha is located in the Yangtze River Delta, it sits on the south edge of the estuary of the Yangtze in the middle portion of the East China coast. It is one of the four direct-controlled municipalities of China and the most populous city in the world, with a population of more than 24 million as of 2017. 

Beijing, is the capital of the People's Republic of China, the world's second most populous city proper, and most populous capital city. The city is located in northern China. Beijing Municipality is surrounded by Hebei Province with the exception of neighboring Tianjin Municipality to the southeast; together the three divisions form the Jingjinji metropolitan region and the national capital region of China. Beijing's Municipality has 21,700,000 inhabitants. The encompassing metropolitan area was estimated by the OECD to have, as of 2010, a population of 24.9 million.

Shenzhen is a major coastal city in Guangdong Province, China. It forms part of the Pearl River Delta megalopolis. The city is located immediately north of Hong Kong Special Administrative Region and holds sub-provincial administrative status, with powers slightly less than a province.

Moscow is the capital and most populous city of Russia, with 12.2 million residents within the city limits and 17.1 million within the urban area. Moscow has the status of a Russian federal city.

Moscow is a major political, economic, cultural, and scientific centre of Russia and Eastern Europe, as well as the largest city entirely on the European continent.

Istanbul historically known as Constantinople and Byzantium, is the most populous city in Turkey and the country's economic, cultural, and historic center. Istanbul is a transcontinental city in Eurasia, straddling the Bosphorus strait (which separates Europe and Asia) between the Sea of Marmara and the Black Sea. Its commercial and historical center lies on the European side and about a third of its population lives on the Asian side. The city is the administrative center of the Istanbul Metropolitan Municipality has a population of around 15 million residents.

Tianjin, formerly known in English as Tientsin, is a metropolis in northern coastal Mainland China and one of the four national central cities of the country, with a total population of 15,469,500, and is also the world's 6th-most populous city proper. It is governed as one of the four direct-controlled municipalities of the PRC and is thus under direct administration of the central government. Tianjin borders Hebei Province and Beijing Municipality, bounded to the east by the Bohai Gulf portion of the Yellow Sea.

Seoul, the capital city of South Korea, is the world’s second largest metropolitan area by population. As a rising global city, it is home to more than half of South Koreans and 632,000 international residents. Seoul boasts five UNESCO World Heritage Sites as well as numerous shopping centers and cultural attractions which draw a lot of international tourists.