The second part of the Utopian Hours 2026 international city-making festival will be held in Turin on October 16 and 17. After a first chapter in Rotterdam, the festival is marking its tenth anniversary edition by returning to its hometown in Italy. The event's lineup and cultural program are designed to explore how cities can respond creatively to the social, environmental, and political challenges of the 21st century. The Utopian Hours festival has been organized since 2017 by Stratosferica, a nonprofit cultural association dedicated to producing and sharing urban knowledge through content on the evolution of cities, urban communication strategies, events, community building and placemaking.
In 1948, Robert Moses established the Fresh Kills Landfill on the western shore of Staten Island. The site, chosen for its remote marshland and cheap land value, was meant to be temporary, but by 1955 it was the largest landfill in the world, receiving up to 29,000 tons of refuse per day at its 1991 peak. By 2001, after more than fifty years of continuous operation, Fresh Kills covered 2,200 acres, roughly three times the area of Central Park, and was, unspectacularly, visible from space. When it started, Moses didn't expect to design a dump but, without calling it that, a new landform with four artificial hills rising up to sixty meters above sea level built entirely from the accumulated residue of eight million daily lives.
That landform is now, slowly, becoming a park. James Corner Field Operations won the international design competition launched by the city in 2001, producing a master plan calledLifescape that will take thirty years to complete. The landfill's four mounds are being capped, planted, and gradually opened to the public. Methane from decomposing waste is captured and fed into an energy system as the wetlands are being restored around the engineered hills. Evidence of New York's consumption transformed into a feat of ecological engineering and an act of institutional memory management (a way of making a city's most embarrassing landscape slowly look like something it was always meant to be).
The most innovative and impactful design projects arise from the intersection of different fields. The architecture community has always borrowed from, or been inspired by, other forms of cultural production such as film, photography, literature, and theatre. In the theatricality of Baroque churches and the cinematic sequences of contemporary museums, architects have looked beyond the building itself to understand how space can shape a story and construct an experience.
Worldbuilding takes this one step further. Instead of designing only the architecture of a place, it asks architects to establish the social rules, narratives, technologies, economies, atmospheres, behaviors, and relationships that make that place believable. Rather than beginning with, "What should this building look like?", worldbuilding suggests beginning with, "In what kind of world would this building make sense?"
UN-Habitat and Oceanix Reveal Prototype for the World's First Sustainable Floating City. Image Courtesy of Oceanix and BIG-Bjarke Ingels Group
Cities depend on systems that already exist around them. When architects design on water or beyond Earth, those systems are no longer available. Without fixed ground or nearby networks for energy, water, transport, and waste, architecture has to take on functions the larger city would normally provide.
The reason for moving beyond familiar ground also changes from one project to another. In the Maldives, building on water responds to the vulnerability of existing land. In Busan, floating development creates another direction for urban expansion. On the Moon, the challenge is more absolute: there is no existing infrastructure to connect to at all.
Asmara, the capital of Eritrea, sits at over 2,300 meters above sea level on a plateau at the edge of the Great Rift Valley escarpment. Although situated in a country not known for large visitor numbers, the city has gained fame for its unique architecture. In July 2017, it became a UNESCO World Heritage Site, inscribed as "Asmara: A Modernist African City," the first modernist urban site anywhere to be listed in its entirety, and Africa's first explicitly modernist World Heritage Site. Its heritage value came about as a result of a complex convergence of two aspects of Eritrea's history: an intense period of colonial construction as Italy pursued its imperial ambitions in Africa, and a long period of relative isolation that insulated the city from redevelopment.
Benghazi 2050: Vision and Digital Planning Hub. Old Town. Image Courtesy of ZHA
A team composed of ZHA, A&O TEC, Prior + Partners, Homa, Buro Happold, Systematica, and Fichtner recently unveiled its concept proposal for the "Next Generation City Plan" for Benghazi, Libya. The project aims to bring together the historic port city's identity-defining features with the planning technologies required to guide its development toward 2050, in a context of rapid urbanization. The proposal, developed for A&O TEC, includes a Vision and Spatial Strategy, which consists of an interpretation of the city's character and collective memory translated into an adaptable framework for development, and a Digital Planning Hub, an evidence-based model mapping the city to identify its potential and the phenomena shaping its growth.
Across Brazil, architecture continues to take shape through different forms of practice, scales, and relationships with place. This month's selection looks at practices working beyond conventional architectural boundaries, collective approaches that reconnect design and construction, and projects that respond to landscape, memory, and community. Alongside recently completed buildings and public spaces, new cultural interventions in São Paulo and Rio de Janeiro further highlight how architecture intersects with art, heritage, and the wider urban environment.
The Continuous Monument- 1969. Image Courtesy of Superstudio
Ask an architect what the hardest problem in the discipline is right now. The block of unmaintained postwar housing two streets from their office rarely comes up. What comes to their mind is the pressure differentials on Mars, or the tensile loads on a floating platform; because unclaimed ground has no one to negotiate with, no history to answer to, no tenant to remember the last renovation, which makes it considerably easier to design for.
Architects think of themselves as solving a harder problem than the one next door. A project, like The Line, a 170-kilometer city meant to house nine million residents, with a site with no prior claimant, is not architecturally harder than a site with a hundred years of tenancy, contested ownership, and a planning department that remembers the last three developers who used the word "community" and meant something else. It is, considerably, easier. No one to persuade, no history to answer to, no argument to lose. Which raises the question of whether the harder problem is sitting two streets from the office, unsolved, and the easier one is the one getting the renderings and the funding rounds; then 'ambition' is the wrong word for what is happening. Something is being avoided, and we need to start thinking about what.
Stefano Boeri Architetti has won the competition launched by Spain's Entidad Estatal de Vivienda, Casa 47, for a new affordable housing development in Ibiza. Named "Sa Casa," the project proposes approximately 190 below-market-rate rental apartments distributed across four residential volumes. The scheme combines a prefabricated timber construction system with adaptable housing layouts and shared open spaces, with the design organized around the relationship between the residential buildings, landscape, and public areas.
Every housing crisis eventually becomes a land question, and every land question eventually becomes a values question. The United States' West Coast has arrived at that point. As cities from Los Angeles to Seattle search for parcels to build the affordable housing they have promised for years, they keep landing on the same answer: the park or the greenbelt. What looks like a zoning decision is a referendum on which form of wellbeing a city is willing to sacrifice for another.
Mexico's rapid urban growth over recent decades has left many cities struggling with fragmented neighborhoods, high crime rates, and severe shortages of quality public spaces. In many low-income urban areas, informal development occurred alongside raw infrastructure like drainage canals, rail lines, and steep ravines, dividing communities and creating hazardous vacant zones. To address this spatial segregation and lack of civic amenities, public agencies and architects across Mexico are intervening in these abandoned buffer zones to construct public parks. By converting former physical barriers into accessible pedestrian corridors, these projects rejoin separated neighborhoods, re-establish safe visual sight lines, and provide spaces for community gathering and daily recreation.
