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Cities and epidemics share an intricate relationship. Throughout history, cities have emerged as breeding grounds for the spread of disease. Yet, as economic, social, and cultural hubs primed to connect ideas and develop solutions, they have historically responded to epidemics with innovation. Still, urban improvements—such as sanitation, water supply, the creation of parks and open spaces, and better transit—have often been accompanied by the replication of precarious conditions on the periphery.

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When considering architecture as a tool of impact on public life, there is an extensive history of cases to draw from, which undoubtedly includes the relationship between architects and the State across various contexts. From landmark examples, such as the urban planning and architectural design of Brasília, to more contemporary demonstrations of the virtues of this collaboration, the civic vocation of design is expressed in its most explicit form through these types of programs. Designing projects with such implications also means confronting the fact that the client does not present the traditional demands of a typical commission, but rather represents collective interests and the effective stewardship of the public realm. This offers a major opportunity for professionals in the field to devise ways to foster and strengthen democratic values within society.

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Following a natural disaster, architecture plays a fundamental role not only in rebuilding damaged structures but also in providing comfort and security for those affected. Successful post-disaster architecture must address both the immediate need for short-term shelter and long-term reconstruction and stability. With this in mind, we have compiled four examples of post-disaster architecture, ranging from built prototypes designed for rapid assembly to unbuilt proposals whose solutions stand out for their efficiency.

The urban drainage infrastructure in most cities, particularly in Brazil, is already obsolete, making its expansion and adaptation crucial. However, this requires a new model of stormwater management that considers long-forgotten ecological aspects. In recent years, the concept of urban ecology has gained traction as a path toward developing regenerative, more resilient cities. These have been called eco-cities or biocities—terms that vary from author to author but share a common focus on nature-based solutions and ecological relationships. 

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Concrete blocks are building units primarily used in the construction of walls and partitions, serving either structural or enclosure functions. As a low-cost, precast material that is commonly left exposed, it is often chosen for projects aiming for economical, fast, and practical construction without requiring highly specialized labor.

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The circular economy has also been adopted as a model in the architecture and construction sector, aiming to create more efficient, functional, and sustainable building projects. The 3Rs (Reduce, Reuse, and Recycle) used as circular economy strategies are already widely recognized, with the first R, "Reduce," being the primary goal in any project. From this perspective, one of the most effective ways to reduce material consumption, natural resources, and costs in building projects is to decrease the size of occupied spaces and built-up area (while maintaining appropriate levels of spatial quality, such as accessibility, ventilation, natural light, layout compatibility, etc.).

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"Smart buildings" is a term that has gained prominence in recent years, both as a way to design more efficient buildings that offer greater benefits to their users and as a vehicle for the real estate industry to find a new market niche. 

In many cases, the term "smart" is overused, often serving merely as a marketing pitch for so-called innovative technologies. In this light, because any technology can become obsolete over time, many building projects considered modern, advanced, or smart at the time of their construction are no longer deemed so today. 

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With the goal of blurring the boundaries traditionally imposed by walls, so-called integrated kitchens can be incorporated into adjacent spaces—most commonly living and dining rooms—using counters, tables, split levels, or even contrasting flooring and finishes.

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Bike lanes created overnight, streets converted into slow zones, hastily extended sidewalks—all to accommodate the need for urban mobility in a pandemic scenario. COVID-19 has driven major urban interventions, often without the possibility of extensive planning or investment. Cities are turning into living laboratories for experiments that can bring benefits during the crisis and leave behind a more sustainable world once the worst has passed.

On one hand, the exorbitant speed represented by rapid, minute-by-minute propagation, the crossing of borders, the spread across all continents, and unrestrained multiplication. On the other, the untouched, the immobile, the domestic cloister, isolation, and confinement in an attempt to avoid any sudden movement, suppress impulse, and control the environment. On one side, the virus; on the other, humanity.

In this pandemic scenario, where a deadly virus is nurtured by the uninterrupted speed of our movements—making us, ourselves, its driving force—immobility is seen as a key part of the antidote. This is an immobility that costs us dearly, confining us to our homes and forcing us to rethink how we experience the world.

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Staircases made of wood can offer a unique character to each project, thanks not only to the different configurations they can occupy in a space, but also to the variations in color and texture provided by different wood species and cuts, as well as the various ways of arranging the treads.

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Today, building humanized cities is predicated on full public participation, as outlined by national public policies institutionalized in Brazil's City Statute. However, it is clear that these mechanisms are largely geared toward adults, leaving children and youth on the margins of the participation and decision-making process.

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The landscape of Brazilian cities shifts between two striking realities. On one hand lies the formal city, where the rule of law prevails, the right to the city is exercised, and high-quality infrastructure and public and private investments are concentrated. This is also the reality used as the baseline for formulating laws and urban planning guidelines, and where the presence of the state is most visible.

On the other hand, there is the informal city—occupying the peripheries and favelas, with an identity marked by exposed clay bricks and excessive density. Here, self-built housing dominates, regardless of land ownership, alongside informal occupation and a chronic absence of public policies and basic infrastructure. Leisure spaces, cultural venues, and green areas are deeply lacking.

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Today is World Bicycle Day, celebrated for the diverse social, economic, and environmental benefits that this mode of transport and recreation offers. By establishing this day, the UN recognizes the contribution of cycling to the Sustainable Development Goals, including the creation of more sustainable cities and communities. This perspective gains even greater relevance during and after the pandemic. When exploring healthy ways to move around the city, active mobility stands out as a highly feasible, short-term alternative—one that goes beyond bike lanes to encompass the well-being of the citizen as a whole.

Currently, the most common materials used in high-rise construction—steel and concrete—are non-renewable and energy-intensive to produce. In this context, wood represents a more sustainable alternative for tall building structures, offering well-known benefits such as renewability, carbon sequestration, low embodied energy during extraction, and rapid construction times. Moreover, contrary to popular belief, mass timber can perform exceptionally well in terms of fire resistance, as discussed in a previous article.

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Since 1992, following the United Nations Conference on Environment and Development, World Oceans Day has been celebrated on June 8 as a tribute to the sea and everything it offers, from raw resources to its powerful presence as a landscape landmark. In architecture, projects that engage with this infinite expanse of water have the opportunity to dialogue directly with one of nature's most powerful and expressive elements.

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The New York firm Diller Scofidio + Renfro (DS+R) gained worldwide attention in 2002 with the Blur Building, designed for that year's Swiss Expo. The volume was formed by 35,000 high-pressure nozzles that sprayed water from the lake below, creating a massive artificial cloud. Its shape, boundaries, colors, and translucency shifted with the sun and wind, offering visitors an immersive experience as they entered a fully permeable volume. Ten years later, Carla Juaçaba and Bia Lessa designed Humanidade2012 for the Rio+20 United Nations Conference, where several programmatic volumes were arranged within a massive scaffolding structure. With more voids than solids, its edges dematerialized into the sky, and at night the volumes appeared to float. According to the architects, “the very movement of people through the building turned visitors into exhibits when seen from afar.” Despite differences in scale and context, both temporary projects succeed in working with notions of translucency, lightness, the dissolution of boundaries, and movement.

In interior design projects, we often encounter certain pieces of furniture that are easily recognized as milestones of a specific era, place, culture, or the career of the designer who created them.

What makes an object or piece of furniture iconic—whether within the design world or beyond—is not determined by a set of rigid rules. Asking what elevates a design to “icon” status leads to deeper questions: Is it its instant recognizability, its ability to break canons, or its timelessness? Furthermore, who are the arbiters who define this iconicity?

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