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Architects: UNA Arquitetos
- Area: 7000 m²
- Year: 2021
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Manufacturers: Atlas Schindler, ACFC4, Arterra, Atlas, Cyberglass, +11


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.











The act of designing implies not only drawing, but building. It carries – or should carry – with it the same rigor and complexity as the execution on the construction site. That's what Francisco Rivas and Rodrigo Messina believe, partners at messina in | rivas, a São Paulo-based firm that has already gained national and international recognition, also selected among the best new practices of 2021 by ArchDaily.
Formed by a Brazilian and an Argentine who met in Paraguay while working at Gabinete de Arquitectura, the office is known for works such as The Chapel Ingá-Mirim, finalist for the Instituto Tomie Ohtake AkzoNobel Architecture Prize 2020 and the Oscar Niemeyer Prize 2020, and São Roque Sauna. More recently, it was elected the winner of the competition for the Maritime Museum of Brazil with the Argentine office Ben-Avid.