Canada's Expo 67 stands as one of the most successful world expos ever held, setting records and leaving an enduring impact on Montreal's urban landscape. As part of Canada's 100 years celebrations, the event provided an opportunity for the city to showcase its cultural and technological achievements on a global platform. With over 50 million visitors in just six months, it shattered attendance records, including an astonishing 569,500 visitors in a single day. An unprecedented feat for a world fair at the time. Now, 58 years later, and with the Osaka Expo 2025 set to showcase how to design the future society for our lives, it is worth revisiting the legacy of Expo 67 and exploring the urban transformations it brought to Montreal.
The Pritzker Prize is the most important award in the field of architecture, awarded to a living architect whose built work "has produced consistent and significant contributions to humanity through the art of architecture." The Prize rewards individuals, not entire offices, as took place in 2000 (when the jury selected Rem Koolhaas instead of his firm OMA) or in 2016 (with Alejandro Aravena selected instead of Elemental); however, the prize can also be awarded to multiple individuals working together, as took place in 2001 (Herzog & de Meuron), 2010 (Kazuyo Sejima and Ryue Nishizawa of SANAA), and 2017 (Rafael Aranda, Carme Pigem, and Ramon Vilalta of RCR Arquitectes).
Much before humans constructed their first permanent shelters, they discovered the protective power of animal hides as a barrier against harsh environmental conditions. This fundamental principle of building with flexible materials finds influence in the architecture of today, despite the lack of strong precedents that have been lost to time. Textiles served as humanity's first architectural elements, predating ancient construction methods like stone masonry. The relationship between textiles and shelter would go on to shape the entire history of architecture, from prehistoric settlements to modern skyscrapers. What lessons might these ancient origins of architecture hold for future advancements in building design?
For cities, hosting an Olympic event represents both an honor, an important opportunity for growth, and a significant challenge. With over 200 nations taking part in the Games, the Olympics are the largest sporting competition in the world. Adapting the public and sporting infrastructure to accommodate this sudden influx of people and the scale of these events runs the risk of misunderstanding the cities’ needs after the closing ceremony, often producing “white elephants” that struggle to adapt to the rhythm and necessities of everyday urban life. Urban transformations are often cited as an advantage of hosting the Olympic Games, as cities are incentivized to invest in their traffic infrastructure, housing, and public spaces. One such example is the city of Paris, which introduced its first metro line on the occasion of hosting the second edition of the Olympic Games in 1900.
When it comes to the venues, however, the issue of adaptive reuse becomes a pressing one, as the architecture is challenged to find solutions to transform, accommodating thousands of people during the Olympics, then scaling down to become a financially sustainable part of a city’s sporting offering. Across the world, several Olympic venues have managed to extend their usability after the closing of the games, opening themselves to the local communities and welcoming a more diverse programming of sports and leisure events. While the high construction costs are often difficult to justify, these venues have become markers of local identity and attractive tourist attractions, extending their use decades after welcoming the Olympic crowds.
Munich – Bavaria’s capital since 1506 – is a city with layers and layers of history. Its many years as a rising architectural epicenter have left an interesting and unique mix of buildings. From Middle Age churches and cathedrals to contemporary synagogues. From skyscrapers to small pavilions. Brutalism to Art Nouveau. Munich’s architecture is truly extensive and marvelous.
Though not acknowledging Munich’s beer wonders would be wrong, the only mention of this substance would be in the stunning buildings (like the new Paulaner HQ by Hierl Architekten) that contain them. Yes, other aspects of the city are grandiose, but let’s focus on Munich’s top attraction: its architecture.
Recent years have seen an increased acknowledgement of the collective endeavour that is architecture and a better valuing of the different professions that participate in the design process. Within every extraordinary building, structural engineering plays an essential role in delivering the architectural vision. The article highlights the past and present contributions of engineering to the built environment, personalities that have stood in the shadow of architects delivering their design intent, and the collaboration between engineers and architects today.
German architect and structural engineer Frei Otto (31 May 1925 – 9 March 2015) was well known for his pioneering innovations in lightweight and tensile structures. Shortly before his death in 2015 he was awarded the Pritzker Prize and prior to that he was awarded the RIBA Royal Gold Medal in 2006. Much of his research in lightweight structures is as relevant today as when he first proposed them over 60 years ago, and his work continues to inform architects and engineers to this day.
Historically inspired by some of the first man-made shelters—such as the black tents first developed using camel leather by the nomads of the Sahara Desert, Saudi Arabia, and Iran, as well as the structures used by Native American tribes—tensile structures offer a range of positive benefits compared to other structural models.
Tensile structure is the term usually used to refer to the construction of roofs using a membrane held in place on steel cables. Their main characteristics are the way in which they work under stress tensile, their ease of pre-fabrication, their ability to cover large spans, and their malleability. This structural system calls for a small amount of material thanks to the use of thin canvases, which when stretched using steel cables, create surfaces capable of overcoming the forces imposed upon them.
Frei Otto (1925-2015) was best known for his innovative lightweight structures, even naming an institute after them at the Stuttgart Technical University. His speciality in tension and membrane structures were, and still are, not only beautiful, but also incredibly modern for his time, creating forms that were entirely new to the eye. One of his most notable creations is the Multihalle, which he contributed towards with the architects Carlfried Mutschler + Partner in 1975; it still remains the largest freestanding wooden lattice structure in the world.
Following the award of the Pritzker Prize to Otto shortly before his death in 2015, the ZKM Center for Art and Media in Karlsruhe is hosting an exhibition of his works in order to introduce "new perspectives on the work of Frei Otto" while "formulating present-day questions concerning the future of our built environment." In service of this aim, architects FAR frohn&rojas created an exhibition design both reminiscent of Otto's deceptively simple structures, and carefully calibrated to show the huge archive of work to great effect. Read on to find out more about the exhibition and its design.
Frei Otto: Spanning the Future, a documentary focusing on the life and work of 2015 Pritzker Prize winner, Frei Otto, has finished production and will be screened at various venues during the course of 2016. The film features one of the last interviews Otto gave before his death, in addition to commentary from renowned architects and engineers, including Zaha Hadid and Jürgen Hennicke, on the importance of his work. In the film, Otto discusses the influences on his work and his approaches on form finding and the development of tensile structures.
In March of this year, two of the world’s great architects died in the same week. The coincidence was unusual not because of the similarities between these two men - the advanced stage of their careers, their age and relative success - but because of the marked differences. In the few days between their mutual passing, one of the two was awarded architecture’s highest medal, the Pritzker Prize. This year’s winner, Frei Otto, had been notified of his triumph in the months prior to his death. Someone you might call his alter ego – stylistically that is – the late, great Michael Graves, died shortly after the prize was awarded to Otto.
Otto was a leading light of a particular strain of European modernism, whose most lauded works were mainly completed in his youth; on the other side of the pond, Michael Graves ran a busy commercial practice with more than 350 completed buildings, but was reviled by some for his revisionist, classical style.
uncube has published an entire issue dedicated to the late Frei Otto. The architect and inventor, known best for his tensile structures, was the first ever to be awarded the Pritzker Prize posthumously. Honoring Otto with more than a "simple retrospective homage," uncube has compiled an extensive online issue of "thoughts, anecdotes and observations" that reflect Otto's legacy and the ideas that lead him to be a significant part of architectural history. View the entire uncube issue on Frei Otto, here.
Pritzker laureateFrei Otto was best known for his tensile structures. A prime example Otto’s ingenuity, the 1972 Olympic Stadium in Munich was a collaborative work with Gunther Behnisch that connected the park’s main programs - the natatorium, gymnasium and main stadium - with a whimsical, lightweight canopy structure that mimicked the “rhythmic protrusions” of the Swiss Alps. Watch the Spirit of Space short film above to see the project in its current state and learn more about the pioneering structure, here.
After news of Frei Otto winning the 2015 Pritzker Prize broke, the internet was filled with comments on his influence on the profession over the past half a century of architecture. Of course, with the news of the Pritzker sadly packaged with news of his death, the impulse for many to offer some words in remembrance heightened the outpouring of opinion.
In addition, Otto was especially popular among some of architecture's most established names; in a tweet, the New York Times architecture critic Michael Kimmelman revealed that among the prominent advocates pushing for him to be awarded the prize were past laureates Renzo Piano and Shigeru Ban. With that in mind, we collected the thoughts and reactions of some of the leading architects today, revealing the respect held for Otto within the profession.
In their notes on the selection of Frei Otto as the 2015 Pritzker Prize Laureate, the jury described him as an architect that took his work beyond the boundaries of the discipline, as an architect who was also a “researcher, inventor, form-finder, engineer, builder, teacher, collaborator, environmentalist, [and] humanist.”
To learn more about Otto’s multidisciplinary approach to architecture as well as his emphasis on experimentation, we turned to an interview he did with Juan María Songel in 2004, published in the book A Conversation with Frei Otto. In the interview, Otto discusses numerous topics of interest and relevance to architecture in the 21st century, and in particular the importance of experimentation and research, declaring: “Productive research must be brave!”
“The computer can only calculate what is already conceptually inside of it; you can only find what you look for in computers. Nevertheless, you can find what you haven’t searched for with free experimentation.” - From A Conversation with Frei Otto, by Juan Maria Songel
For Frei Otto, experimentation with models and maquettes was a fundamental part of his work as an architect. In 1961, he began to conduct a series of experiments with soap bubbles (featured in the video above). His experiments centered on suspending soap film and dropping a looped string into it to form a perfect circle. By then trying to pull the string out a minimal surface was created. It was these created surfaces that Otto experimented with.
Through these types of experimentation he was able to build forms and structures that were previously believed to be impossible. “Now it can be calculated, but for more than 40 years it was impossible to calculate it. I have not waited for it to be calculated in order to build it.”
Videos
Aviary at the Munich Zoo. Image Courtesy of Atelier Frei Otto Warmbronn
“Frei Otto: Spanning the Future,” a documentary profiling the internationally renowned architect and engineer Frei Otto, has been in production since 2012. Otto, who was named the 2015 Pritzker Prize laureate on Tuesday evening (following his death on Monday night), first gained international recognition half a century ago as a pioneer in designing tensile structures using metal frames and lightweight membranes.
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.jpg?1434891896 "Michael Graves' Denver Central Library. Image © Michael Graves")
.jpg?1434891627 "Michael Graves' St. Coletta School. Image © Michael Graves")
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