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Architects: CM Design
- Area: 809 m²
- Year: 2025
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Professionals: China MCC20 Group Co., Ltd., Shenzhen Aoya Design Co., Ltd.



More than half of the world's population resides in urban areas, with over 4 billion people depending on cities as their main environment. According to the United Nations’ latest report on populations in cities, this number is expected to continue to increase over the next 50 years, prompting cities worldwide to strive to find better ways to accommodate their growing population while transitioning to more sustainable urban practices. To highlight this responsibility, the United Nations has declared July 11th the World Population Day.
Under this year’s theme, “To Leave No One Behind, Count Everyone,” the UN aims to also draw attention to the importance of data collection for reflecting societal diversity. The growth of world cities is part of this equation as an important measure for understanding global population trends. The following list presents the top 20 cities worldwide in 2024, ranked by the population size of their metropolitan areas. Comparing the results to the previous editions, the only cities to reduce their size are the two cities from Japan, Tokyo and Osaka. The highest growth rates can be observed in African mega-cities, Kinshasa and Lagos, while China continues to be the most present country in the list, with 5 metropolises present in the top 20: Shanghai, Beijing, Chongqing, Tianjin, and Guangzhou.

Half of the world’s population now lives in cities, according to UN-Habitat’s latest reports. While this number is set to increase to two-thirds by 2050, urban challenges are growing exponentially, making it more crucial than ever, to transform our cities. Annually, the world population review assesses the growth of cities and the number of residents living in metropolitan areas, to understand global evolution trends. In 2022, the list of the top 20 most populated countries remained similar to the 2021 edition, with a slight change in numbers and positions. Tokyo kept its status as the world’s largest city, with 37 million inhabitants, while Delhi and Shanghai, followed in second and third positions.
Comparing the results to the 2021 edition, the only decrease that can be seen in the top 20, involves both Japanese cities, Tokyo and Osaka. The rest of the list had, on average, a growth of 1.8% in the total of people residing in metropolitan areas. In fact, African cities Kinshasa in the Democratic Republic of Congo and Lagos in Nigeria gathered the highest rates, with respectively a 4.39% and a 3.54% increase in residents in 1 year. The largest city in the American continent is still Sao Paulo in Brazil, followed closely by Mexico City and Buenos Aires in Argentina, further down the table. In Europe, Istanbul is the most populous, with more than 14.5 million residents.




China’s latest landmark, the National Maritime Museum is now open to the public. 6 years in the making, the project is first of its kind. Designed by COX Architecture, after winning the international design competition back in 2013, the museum is located in the recently developed Binhai New Area, in the city district of Tianjin.
