On December 23, 1972, Managua, the capital of Nicaragua, was struck by a 6.3-magnitude earthquake. In a matter of minutes, its urban core, which for decades had functioned as a compact political and economic center, abruptly collapsed. In the reconstruction process that followed, the authorities sought not simply to rebuild but to reorganize. Their objective was to decentralize the city and prevent future paralysis by dispersing functions across multiple zones. Among the most significant architectural outcomes of this shift was the new Metropolitan Cathedral. Its modernist language symbolized both institutional continuity and urban transformation. In doing so, it embodied Managua's transition from a Spanish-style, centralized urban grid to a contemporary, decentralized metropolis.

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The role of heritage rehabilitation in the contemporary architectural landscape is shaped by a wide range of research, beliefs, memories, and efforts aimed at redefining and strengthening our built environment. When undertaking a transformation, renovation, or preservation project, architects can employ diverse strategies and tools to encourage a meaningful coexistence between what already exists and what is newly introduced. Together with three Madrid-based architecture practices—SOLAR, Pachón-Paredes, and BA-RRO—we set out to engage in conversation and explore their creative processes and ideals, recognizing the complexity and value of historic buildings as repositories of materials, structures, and construction techniques from other eras.

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When placing a house on its site, one of the first steps is to recognize the territory that surrounds it, identifying its potentials and tensions. In this process, we inevitably select, cut, hide, or enhance certain views, shaping the architectural experience according to the sensations we wish to foster.

A visual hierarchy is therefore established, guiding the eye and determining what should be seen, in what way, and with what emotional intensity, defining how the user interprets the surroundings. In this context, design strategy goes beyond aesthetic choice and begins to operate as a construction of the phenomenological experience of space. By selecting a specific fragment of the horizon through a controlled opening, or by dissolving the limits between inside and outside with large glazed planes, architecture begins to act as a lens. It can emphasize the smallness of the human scale in relation to the vastness of the territory or, conversely, domesticate nature, incorporating it into everyday life.

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Heritage sites constitute complex spatial archives in which architecture, history, and collective memory converge. They encompass a wide spectrum of contexts—from archaeological remains, ancient and historic townscapes, UNESCO-listed landscapes, to early modern civic structures and industrial infrastructures. Yet these environments confront challenges: climate change, urban transformation, disaster, shifting social needs, and the gradual erosion of material fabric. Revitalization and restoration projects respond to these conditions by positioning architectural and spatial practice as an active mediator between preservation and the contemporary topologies.

In current practice, conservation is understood as a creative process of adaptation and reinterpretation that serves both communities and inhabitants. At the same time, monumental architecture continues to define the identity and landscape of a place for wider audiences and future generations. Architects and planners are called upon to negotiate sensitive historic contexts while introducing new programs, techniques, and spatial experiences. They exemplify diverse design approaches, including precise structural interventions, climate-responsive strategies, and meticulous material restoration, alongside the thoughtful insertion of new architectural elements. Equally important is their engagement with vernacular knowledge and materiality, which preserves the locality and cultural specificity of each site.

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Postmodernism in the United States turned architecture into a stage for cultural memory, irony, and heritage at a moment when the built environment was becoming less civic and more commercial and curated. By the late twentieth century, architectural investment no longer centered on monumental public institutions or shared federal commitment to civic space. Private development, corporate expansion, and consumer environments increasingly shaped cities across the country. Buildings took on a new role as cultural images, expected to communicate identity and meaning as much as they provided function.

Postmodernism began as a critique of modernism's exhausted promises. By the late 1960s and early 1970s, many designers no longer treated modernism as radical or socially redemptive. Urban renewal projects accelerated the demolition of historic neighborhoods, and landmark preservation battles raised urgent questions about what the United States valued and, ultimately, protected. The loss of major civic icons, including New York's Penn Station, sharpened public awareness that progress often arrives through erasure. In Chicago, architect and provocateur Stanley Tigerman captured this sense of rupture in his 1978 photomontage The Titanic, which depicts Mies van der Rohe's Crown Hall sinking into Lake Michigan, a blunt image of modernism's symbolic collapse. Postmodern architects worked inside this turbulence, shaped by economic shocks, corporate excess, shifting cultural production, and a growing skepticism toward grand architectural solutions.

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Perched above the cliffs of Crimea, the Druzhba Thermal Sanatorium appears less as a building than as a landed spacecraft. Its circular forms, suspended decks, and spiraling ramps evoke a scene from Andrei Tarkovsky's Solaris (1972), where architecture and psychology merge into a single landscape. Built between 1978 and 1985 by Igor Vasilevsky, the complex was conceived as a thermal resort for workers of the oil industry, part of the Soviet Union's extensive network of sanatoria dedicated to health and recreation.

Beyond its function as a place of recovery, Druzhba, meaning "friendship", embodied a broader political and aesthetic ambition. It sought to merge technological prowess with the restorative ideals of socialist modernity, translating collective well-being into concrete form. Rising from a steep coastal slope overlooking the Black Sea, its massive structure defies gravity, supported by a central concrete core from which radial wings extend like the blades of an enormous gear. Seen from a distance, it feels simultaneously mechanical and organic, a hybrid of infrastructure and landscape.

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In the coastal and jungle regions of Costa Rica, high humidity and intense solar radiation dictate an architectural strategy centered on permeability rather than enclosure. Unlike the airtight envelopes required in cold climates to retain heat, Costa Rican architecture uses the building envelope as a climatic filter to maximize air exchange. The primary mechanism for managing these thermal gradients seems to be the oversized roof overhang. By extending the roof plane significantly beyond the floor plate, architects create a permanent buffer of deep shade that reduces solar gain and lowers the ambient temperature before air enters the structure. This strategy, combined with permeable or non-existent walls, allows for constant airflow. This is a critical technical requirement for humidity control and the prevention of material degradation through mold and rot.

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Educational architecture remains an exploratory ground for unbuilt exploration, offering insight into how learning environments can evolve alongside changing social, ecological, and pedagogical values. In this Unbuilt edition, submitted by the ArchDaily community, the selected projects bring together a range of proposals that examine schools, libraries, nurseries, and academic centers as spatial frameworks for care, knowledge, and collective growth. Rather than treating education as a fixed program housed within singular buildings, these projects approach learning spaces as adaptive environments shaped by landscape, climate, and human interaction.

Across varied geographies, from Mediterranean hillsides and Central European courtyards to tropical cities and distributed campus models, the proposals explore diverse architectural responses to contemporary education. They range from child-scaled kindergartens organized around trees and cloisters to libraries conceived as civic landscapes, biodiversity-centered academic buildings, and schools imagined as walkable urban systems.

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Many of the spatial ideas we now associate with contemporary architecture, collective use, and bodily experience did not originate in buildings alone. In Latin America, these ideas were often explored first through art, at a moment when artists were actively questioning how space could be occupied, shared, and experienced beyond traditional forms.

During the mid-20th century, the region underwent rapid urbanization and profound social change. Architecture was increasingly expected to respond to public life, collectivity, and new ways of inhabiting space. At the same time, art offered a more flexible ground for experimentation, one less constrained by function, regulation, or permanence. As a result, many spatial questions were tested through artistic practices before becoming part of architectural thinking.

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