Public spaces are more than just physical voids in the urban fabric—they are stages for social interaction, cultural expression, and collective memory. In times of social fragmentation and environmental stress, these spaces can serve as catalysts for healing, offering safe environments where communities can reconnect. Through thoughtful design and participatory processes, public space interventions can rebuild trust, promote mental well-being, and foster a renewed sense of belonging among community members.
The 2025 Pritzker Prize has been awarded this year to Chinese Architect Liu Jiakun. Born in Chengdu in 1956, he grew up in the densifying city, before attending and graduating from the Chongqing Architecture and Engineering College (Chongqing University) in 1982 with a Bachelor of Engineering degree in Architecture, and becoming one of the first college graduates to be tasked with rebuilding the country during the Chinese transition period. However, it wasn't until many years later that the architect understood that "the built environment could be used as a medium for personal expression". It was then that his endeavors and career took off, with Liu Jiakun starting his practice in 1999, and participating in more collaborative works across China and Europe. Based on his experiences, his works are anchored in his understanding of reality and a respect towards China's multi-traditional history and internal diversity; all while achieving a seamless balance between architecture and nature, tradition and modernity.
These concepts do not obstruct his consciousness of human needs and the importance of community spaces. Through his projects, Liu Jiakun proves that spaces can affect human behavior and become positively evocative. A public space such as those he's created can be conducive to a benevolent atmosphere that provides rest and collaboration. "such as my pursuit of narrative and poetry in design." The comprehensiveness of Liu Jiakun's works makes it easy not to be constrained by stylistic or aesthetic limitations or requirements. He just follows what the site, natural landscape, pre-existing urban frame, and citizen needs might require. The physical result is a mix of all of these with the predominant vernacular traditions.
With escalating land values in urban centers, there has been a growing trend to float public spaces from ground level to elevated locations, such as rooftops or podiums between buildings. From a development perspective, maximizing floor area has become crucial as urban environments expand. Ground-level spaces are highly sought after for retail use due to their strategic location, which attracts foot traffic and potential customers and drives city development and economics.
This financial consideration, which often guides building activities and directions in urban centers, contradicts design principles advocated during the modernist era for the benefits of better outdoor space for the public, such as the concept of 'Freeing the Ground'. Architects like Le Corbusier championed this concept through projects like Villa Savoye and Unite d' Habitation. These modernist designs envisioned a future where buildings were elevated to restore open, accessible outdoor ground-level spaces for its users. However, for the reasons above, many contemporary projects instead seek to replicate the function of public grounds within the building's structure.
Large-scale infrastructure projects often aim to connect distant locations within urban areas, facilitating quicker transportation, logistics, and commercial activities along their routes. However, while these projects link distant destinations, their substantial physical presence can significantly affect local communities. This may result in the disconnection and disengagement of previously connected neighborhoods, the disruption of public spaces, and generally negative outdoor experiences caused by noise, pollution, and lack of attention and maintenance to these infrastructures.
Nevertheless, several successful built environment projects have re-integrated contentious infrastructure into the community through thoughtful design of outdoor spaces, with Paris' Coulée verte René-Dumont being one of the first examples and New York's High Line being one of the most prominent examples. The High Line demonstrates how well-conceived outdoor projects can address the alienation caused by extensive infrastructure, foster community reconnection, serve as cultural and economic hubs, and even spur further economic redevelopment, as in Hudson Yards.
CityMakers, The Global Community of Architects Who Learn from Exemplary Cities and Their Makers, is working with Archdaily to publish a series of articles about Barcelona, Medellin, and Rotterdam. The authors are the architects, urban planners, and/or strategists behind the projects that have transformed these three cities and are studied in the "Schools of Cities" and "Documentary Courses" made by CityMakers. On this occasion, Jaume Barnada, coordinator of the award-winning Climate Shelters project in Barcelona schools and speaker at the "Schools of Cities", presents his article "Barcelona, the public place as a synonym for the adaptation of the built city."
Cities are dense, built spaces in which pavements have been efficiently imposed on the natural soil. Cities like Barcelona have almost 75% of the land paved and waterproof. Without a doubt, it is an excess to reverse at a time of climate emergency, where we must reconnect with nature. Oriol Bohigas [1] told us that good urbanization had paved the squares of Mediterranean cities and that no one wanted to live in a mudhole. I'm sure he was right. Also, he taught us that the green and, consequently, the natural soil had to have dimension and especially an urban position. Squares are squares and parks are parks, and each space has a type of project. Today, concepts are too frequently confused when urbanizing public places and consequently, we find projects that blur the model.
Violent cities result from social and economic inequality, which also affects the urban landscape and the way we live. In honor of International Cities Day, we have selected a series of projects to reflect on non-violent ways of using public space.
Ennead Architects and KSS Architects have just unveiled the design for the Jean & Ric Edelman Fossil Park Museum of Rowan University. The museum is located at the heart of a 65-acre fossil park in Mantua Township, New Jersey. Spanning 44,000 square feet, the program focuses on exploration, preservation, and education. Moreover, it allows citizens and scientists to have the unique opportunity to participate in fossil excavation alongside research actively. The visitor and the researchers will study the events leading to the fifth mass extinction, all within the confines of a 66-million-year-old former quarry. The project is scheduled to open its doors to the public in early 2024, positioning itself as a symbol of scientific exploration and environmental stewardship.
Modernity and globalization have significantly reduced geographical distances, transformed social interactions, and accelerated the flow of information across nations, which has, in a sense, made the world more accessible to people everywhere. However, it's important to note that when we say "everyone," we refer to a vast and diverse population. Modernity and globalization had an impact on noticeable inequalities in both social and technological realms, as more advanced and privileged nations have established benchmarks and norms for leisure, culture, and consumption. As a result, certain cultures have established a dominant influence, promoting the notion that there is a "correct" way to live and build cities. This unchecked pursuit of development comes at a significant cost to the Earth's ecosystems and biomes.
Architecture reconciles the sense of belonging and dignity of space. In addition to designing residential or cultural facilities, addressing public space in communities that inhabit vulnerable areas is also urgent and necessary to provide a dignified infrastructure that provides quality of life for the population. Therefore, we have gathered seven interventions in marginalized territories that show the potential for transformation from the space itself.
Highway interchanges have evolved from important infrastructures that help distribute traffic to unique landmarks that define cities. As multiple road networks embrace and form distinctive sculptures, these road intersections range from singular bridge connections and roundabouts to numerous, layered and multi-layered interchanges. They twist, turn, loop, and wrap around sparse land, vegetation, or existing structures in a bid to transfer travelers from one roadway to another. However, they also create a moment of enclosure, forming partially bounded areas and a sense of space. These spaces could be viewed as liminal and transitional, with no fixed typology able to be hosted. But that blurring character calls for ideas of urban intervention to disrupt the notion of what these spaces can be. They can be readapted from car-dominant sculptures into more human-friendly places and re-integrated as extended schemes of the city's architecture.
Playful cities promote play, leisure, and creativity in their public spaces and architecture. It offers opportunities for gatherings that help develop communities socially and culturally, improving the quality of life and providing essential elements for healthier and more balanced habits. They directly influence citizens' cognitive and emotional development by stimulating creativity and imagination through spaces designed for fun.
Besides reflecting the aspirations of a society, public spaces also configure the scenarios in which new ideas of coexistence and the collective can emerge from their qualities. Thinking about the streets, squares, parks, and even nature is a way of dealing with common ideals and ensuring the social dynamics in the relationship between bodies and the environment.
Urban public spaces can transform the life of neighborhoods and cities and, therefore, need to be open to the social, cultural and technological changes that occur in society. From urban vegetable gardens to pet spaces, from rain gardens to art pavilions, life in today's cities has created new demands and ways of using and appropriating public spaces.
In the 19th century, many Americans living in up-and-coming cities and towns oftentimes found themselves strolling through the winding paths of curated gardens, stopping to rest under the shade of a tree and share a picnic with family and friends. Dotted across the grassy areas were headstones, marking the burial locations of those who were laid to rest. While the concept of relaxing in a graveyard seems a bit taboo in the present day, it was sometimes the only option for people to find space for recreation and leisure and was one of the earliest examples of a public park. Many of the parks we have today were actually caused by the evolution and planning of historic cemeteries.
Extreme natural events are becoming increasingly frequent all over the world. Numerous studies indicate that floods, storms, and sea-level rise could affect more than 800 million people worldwide, ultimately costing cities $1 trillion per year by the middle of the century. This suggests that urban survival depends on addressing urban vulnerability as a matter of urgency to protect the city and the population.
The climate crisis has accentuated changes in the amount of rainfall, causing droughts or storms with large volumes of water, which result in floods that can cause great damage to urban infrastructure. To combat this, the sponge city is a solution that has a green infrastructure to operate the infiltration, absorption, storage and even purification of these surface waters.
Have you ever wondered why chess sets can be found in parks and other public spaces and contemplated what their role is within these spaces? Studies have shown that sports and games work to reduce stress and improve the overall mental health of the public. Chess, one of world's most popular games, allows two people from anywhere on the globe to play regardless of language barriers, age, gender, physical ability, or social situation.
