Every year, World Population Day is observed on July 11th, aiming to increase people's awareness of various population issues, such as the importance of urbanization, genderequality, poverty, health, and human rights. In 2025, under the theme "Empowering Youth to Build the Families They Want," the United Nations draws attention to the largest generation of young people in history, many of whom are coming of age in rapidly urbanizing contexts. Urban centers remain key to understanding these demographic patterns, as cities continue to attract populations seeking opportunity, stability, and access to essential services. Today, more than half of the global population resides in urban areas, a share projected to increase to 66% by 2050.
The Economist Intelligence Unit (EIU) has released its Global Liveability Index for 2025, assessing 173 cities worldwide across five categories: stability, healthcare, culture and environment, education, and infrastructure. This year, Copenhagen has taken the top position, ending Vienna's three-year run as the world's most liveable city. The Danish capital earned high scores in stability, education, and infrastructure, narrowly surpassing Vienna, which saw a decline in its stability rating following recent security incidents. The average global liveability score for 2025 remains steady at 76.1 out of 100, unchanged from 2024. While year-on-year improvements were recorded in healthcare, education, and infrastructure, these were offset by a continued decline in stability, driven by rising geopolitical tensions, civil unrest, and increased security threats in several regions.
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.
Yasmeen Lari, recognized as the first female architect in Pakistan, has had a significant impact both in her home country and internationally due to her innovative and socially conscious approach to architecture. Through a systemic approach, Lari’s work takes into consideration local culture, site-specific opportunities, and challenges. Born in Pakistan in 1941, Yasmeen Lari moved to London with her family at the age of 15. After graduating from Oxford Brooks School of Architecture, she returned to Pakistan at the age of 23 to establish Lari Associates with her husband, Suhail Zaheer Lari. The couple settled in Karachi. Here, she began to study Pakistan’s ancient towns and the vernacular architecture of earth buildings, igniting her interest in the architectural heritage and traditional techniques of her country. In 1980, she co-founded the Heritage Foundation of Pakistan with her husband, becoming instrumental in the preservation of her country’s rich cultural heritage.
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.
Pakistani architecture is defined by multiplicity. Both following tradition and breaking from it, contemporary projects contend with multiple histories. Informed by the coexistence and juxtaposition of conditions like regulated development and informal settlements in Karachi and Islamabad, modern designs are being shaped by broader contexts. In turn, these public and private projects are exploring new spaces and forms.
Titled "Mapping Festivities", the Pakistan Pavilion at the 17th International Architecture Exhibition – La Biennale di Venezia, explores the national wedding hall as an architectural typology of post-colonial Pakistan. Curated by Sara M. Anwar, the pavilion will be on display on the second floor of the Palazzo Mora from May 22nd until November 21st.
According to the United Nations’ latest report on populations in cities, by 2030, “urban areas are projected to house 60 percent of people globally and one in every three people will live in cities with at least half a million inhabitants”. Growing in both size and number, cities are hubs of government, commerce, and transportation, and in 2021, the world’s 20 largest cities are home to half a billion people. In fact, one in five people worldwide lives in a city with more than 1 million inhabitants.
Below, we have rounded up the top 20 megacities in the world of 2021, according to the number of people that live in their metropolitan area. While Tokyo is the largest city on a global level, with a total of more than 37 million residents, the majority of the most populous cities in the world are in the two most populated countries, China and India. Among these, we have 5 metropolises in China, Shanghai, Beijing, Chongqing, Tianjin, and Guangzhou, and 3 in India, Delhi, Mumbai, and Kolkata. The largest city in the American continent is Sao Paulo in Brazil with 22 million people, followed by Mexico City and Buenos Aires in Argentina. Istanbul takes the 13th position with one part of the city lying in Europe and the other part in Asia.
As part of our 2018 Venice Architecture Biennale coverage we present the proposal for the Pakistan Pavilion. Below, the participants describe their contribution in their own words.
Keeping the subject of FREESPACE in perspective, the Pakistan Pavilion takes inspiration from the physical and social dimensions of the sparsely open spaces embedded within the many informal settlements of Karachi, the most populated and fastest growing city of Pakistan.
