The recently opened David Geffen Galleries at LACMA are the result of more than a decade of effort across many fronts: the city, the county, the public, the architect, the engineers, the general contractor, and the many builders involved in translating an ambitious and visionary design into built form. The project has also been subject to unusually intense scrutiny, with responses ranging from admiration for its meticulous construction and architectural ambition to criticism of its scale, cost, concrete mass, and engineering complexity in earthquake-prone Los Angeles. Whatever one's position, the building remains an exceptionally sophisticated case study in how architecture is negotiated through construction.

This conversation approaches the David Geffen Galleries from the perspective of Clark Construction, the general contractor responsible for helping bring Peter Zumthor's design to completion. Carlos Gonzalez, Group President at Clark Construction, oversaw the construction process and shared with ArchDaily some of the technical, material, and logistical challenges behind the building. These range from its monolithic concrete structure and extensive post-tensioning system to the 56 seismic isolators that allow the building to move during an earthquake; from unpredictable ground conditions near the La Brea Tar Pits to the fabrication of solid bronze mullions and the integration of mechanical systems within the building's double-deck concrete structure.

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Images of the benches at New York City's High Line Park spread around the world when the project opened in 2009. Emerging diagonally from the same material and modular pattern as the paving, they transition seamlessly from concrete to wood, evoking the railway tracks that once occupied the site. To withstand decades of exposure to the elements, the project required a wood species of exceptional durability, and ipe, harvested from the Brazilian Amazon, was selected. Its slow growth produces a dense, low-porosity hardwood that is naturally resistant to wear, moisture, and biological decay. The choice, however, sparked controversy at the time amid concerns over the certification of the timber's forest management. This broader view changes how we think about materials. Their origin still matters, but so does what happens after the building's life comes to an end.

This week belonged to the arts, with cultural architecture dominating headlines across the globe. Landmark buildings for major institutions advanced through important construction and design milestones, from the Shanghai Opera House to Abu Dhabi's new performing arts center, while two new museum commissions were announced following international competitions. Architecture also took centre stage as a subject of exhibition itself, with the Sharjah Architecture Triennial revealing its participant list and Austria unveiling its proposal for the 2027 Venice Architecture Biennale. Beyond these developments, this week's news compilation includes three upcoming urban design projects: in Seoul, South Korea, a new riverside neighbourhood in the Apgujeong district weaves residential towers around parkland connecting the city to the Han River; in Cardiff, Wales, a pedestrian and cycle bridge over the River Taff links waterfront neighbourhoods to new housing along the water's edge; and in Bengaluru, South India, the Museum of Art and Photography is expanding its public campus, adding new civic and cultural facilities alongside a major new sculpture park set within a UNESCO Biosphere Reserve in Tamil Nadu.

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Barcelona is a city where architecture has long served as a laboratory of urban experimentation, each era leaving its mark on the city's fabric. From the dense streets of the Gothic Quarter to the ornate interiors of the Palau de la Música Catalana, the city expanded outward through Ildefons Cerdà's Eixample, a stage where Gaudí and his contemporaries challenged the rules of form, scale, and ornamentation. These experiments defined a local identity and culminated in the Sagrada Família, a vision that continues into the 21st century through the integration of advanced technology.

The city's twentieth-century transformation forged an architectural language with global influence. The principles of International Modernism are embodied in Mies van der Rohe's Barcelona Pavilion, while later developments—from Bofill's explorations in collective housing to the urban interventions of the 1992 Olympics—reshaped the skyline and the city's relationship to its waterfront. Subsequent contemporary projects continue to negotiate form, landscape, and urban scale, contributing to a layered and evolving city.

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The New York City local government is one of the largest of its kind, with hundreds of city agencies and elected offices. The Mayor, city agencies, the city council, the comptroller, the public advocate, the borough presidents, and community boards organize to provide services and improve the quality of life in the biggest city in the United States and a primary tourist destination. Like other metropolises in the world, urban developers and authorities in New York are facing common challenges: the atmospheric effects and permanent consequences of the climate crisis, the saturation of transport systems, the lack of housing units, and barriers to accessing adequate housing. During June, the New York City mayor's office announcements addressed traffic and mobility, sports events, immigration, and extreme heat. In recent months, a series of policies have been announced to address a larger problem: ensuring access to housing for a greater number of people through government action.

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Smiljan Radić's architecture often begins elsewhere: in a memory, a journey, a material, a stone, a half-seen structure, or a situation not yet organized as an architectural idea. In "Architecture: Distraction and Knowledge," his 2026 Pritzker Architecture Prize Laureate Lecture, distraction does not appear as a lack of focus, but as a way of receiving the world. It is through these peripheral encounters — travel, ruins, cities, stories, industries, and materials — that architectural knowledge slowly accumulates.

When Radić was announced as the 2026 Pritzker Architecture Prize laureate, the recognition did not simply confirm a body of work already known for its material strangeness. It also clarified an architectural position that has long resisted easy translation into theory, or style, or spectacle. Radić's work is often described through oppositions: heavy and light, primitive and industrial, fragile and monumental, shelter and object, ruin and apparition. Yet these terms only partially account for the force of his architecture. What makes the work difficult, and increasingly necessary, is its refusal to become fully legible as a claim of certainty.

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At the time of writing, an article by Martyn Evans asked 'Is Architecture in Crisis?' In the same year, Reinier de Graaf published the book 'Architecture Against Architecture,' where he set out fourteen problems with the profession and discipline. The question of a crisis in architecture is a perennial one. Referring to architecture as a profession, it rears its head especially when economic downturns are expected or in full swing. Simultaneously, there are ongoing questions regarding the effectiveness of architecture at dealing with the pressing matters of the globe and society—housing, climate change, and human development. One venture that attempts to address these questions is MASS, established in Rwanda not long after the 2008 financial crisis. The clue is in the name, which stands for Model of Architecture Serving Society. MASS was created as a different way of practicing architecture.

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On UNESCO's International Day of Light, celebrated annually on May 16, the Daylight Award announced its 2026 laureates. Established to support research into the scientific understanding of daylight and its significance for health, well-being, ecosystems, and architectural design, the award recognizes achievements in two categories: Daylight in Architecture and Daylight Research. This year, Japanese architects Momoyo Kaijima and Yoshiharu Tsukamoto of Atelier Bow-Wow were honored for demonstrating how daylight can shape shared spaces and everyday life, while marine biologists Brittany N. Zepernick, Steven W. Wilhelm, and R. Michael McKay of the United States and Canada were recognized for their research on aquatic microorganisms and their implications for planetary health and biodiversity.

Some cities grow through continuity, others construct themselves through moments of acceleration. Baku, in Azerbaijan, seems to operate somewhere in between. Its historic core, the Icherisheher, still holds a spatial logic that resists expansion: dense, enclosed, defined by proximity and repetition. But just beyond its walls, the city begins to shift. Scale increases, distances expand, and the relationship between buildings becomes less about continuity and more about visibility.

Over the past two decades, Baku has been the site of a deliberate effort to construct an image of itself. Oil wealth provided the means, but architecture became one of its primary tools. Projects such as the Heydar Aliyev Center by Zaha Hadid Architects or the Flame Towers are symbols of this transformation, their forms designed to circulate as much through media as through the city itself. They are precise, controlled, and highly resolved objects. But they also introduce a different urban logic, one that privileges singularity over continuity and positions architecture as an agent of representation.

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Architecture is traditionally chronicled through the persistence of the solid. We define the discipline by the weight of the lintel, the mass of the pier, and the resistance of the wall. Even when lightness is invoked, it is usually understood as a subtractive act, the thinning of a section or the precarious reduction of a load. Yet there is a parallel history, less visible and harder to isolate, in which the primary material of construction is not what occupies space, but what moves through it.

To treat air as a medium is to move past the binary of the envelope. The boundary between the interior and the world ceases to be a line of absolute separation and becomes, instead, a site of filtration and pressure. We begin to see the building as a thermal valve, a series of gradients where moisture, velocity, and heat are not merely background "conditions" to be mitigated by mechanical systems, but are the very substances being shaped.

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In Six Memos for the Next Millennium, Italo Calvino explores lightness from a literary perspective and argues, "Opposed to lightness is weight. Removing weight produces lightness; it is a value, not a defect." Drawing on Greek mythology, he reflects on one of Perseus's feats after severing the head of the terrible Gorgon Medusa without being turned to stone. Assisted by the gods Hades, Hermes, and Athena, Perseus flies with his winged sandals and uses a bronze shield as a mirror to reflect her image. Relying, like many architects, on what is lightest—the wind and the clouds—he also fixes his gaze on what is revealed through indirect vision: an image reflected in a mirror.

Historically, transparency has been naturalized as an inherent condition of modern architecture. With the shift from the heavy load-bearing wall to the lightweight glass envelope, glass was introduced into the discipline, blurring the boundaries between interior and exterior spaces. In connection with inflatable architecture, transparency is linked to lightness and impermanence, leaving temporary traces on the landscapes it inhabits. By using textiles or plastics as main materials and air as a structural system, the search for lightness in the built environment now recognizes more than a single atmosphere of application.

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Observed annually on April 22, International Mother Earth Day frames this week's architectural discourse through an urgent call to rethink the relationship between the built environment and natural systems, foregrounding themes such as urban rewilding, the restoration of aquatic ecosystems, and the integration of ancestral knowledge into contemporary design practices. On another note, the opening of Salone del Mobile.Milano 2026 and Milan Design Week 2026 seek to reinforce the global relevance of design as a platform for exchange and experimentation, activating the city of Milan through a network of exhibitions and installations that engage both industry and public audiences. Among the announcements of award-winning architectural projects this week, the United Nations' House of No Waste (HØW) Competition highlights emerging architectural responses to climate and resource challenges. The awarded projects demonstrate scalable strategies for reducing material waste and embodied carbon while promoting adaptable, socially responsive, and resource-conscious public infrastructure.

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Using massive s plates, often several centimeters thick and weighing tons, Richard Serra's sculptures convey an almost improbable sense of lightness. This effect does not result from a reduction of mass, but from how that mass is organized: large curved surfaces tilt, narrow passages compress the body, and seemingly unstable elements create a constant sense of imbalance. Serra transforms weight into a dynamic spatial experience.

In architecture, lightness has occupied a central role at least since the modern period. While earlier traditions, such as Greek and Roman architecture, were closely associated with stability, and large churches with monumentality, the twentieth century introduced a decisive shift in how matter is handled, particularly through the separation of structure and enclosure.

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