This August 19th is World Photo Day, which celebrates photography on the anniversary of the day on which France bought the patent for the daguerreotype, one of the earliest photographic processes, and released it to the world for free in 1839. At ArchDaily, we understand the importance of photography in architecture—not only as a tool for recording designs, but also as a discipline that many of us enjoy. To celebrate the occasion, we decided to reveal the most popular images ever published on ArchDaily, as selected by you, our readers. Using data gathered from My ArchDaily, we have ranked the 100 most-saved images from our database; read on to see them.

Under the theme "Healthy & Climate Friendly Architecture - From Knowledge to Practice", the 7th VELUX Daylight Symposium, held in Berlin on 3-4 May 2017, was attended by 39 speakers from research and architectural practice.

Participants were able to contrast the information presented by researchers with the 'built experience' of architects from Europe, Canada and USA, generating interesting discussions about the need to go deeper in the understanding of this natural resource, and then design more effectively.

These are the highlights from the event.

Seeing the space of an auditorium in section is a key tool in allowing us to approach a design's of acoustics, accessibility, and lighting. These components are what make the design of an auditorium a complex task, requiring detailed and specific studies.

There are a number of ways to design an auditorium that offers multiple responses to these challenges. For this reason, we have selected a number of sections from different auditoriums that can help you understand how other architects have solved the challenge.

Check out the 30 auditorium sections below, they are sure to inspire you!

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The official opening date for Caen's new public library, designed by Rotterdam-based practice OMA, has been slated for January 13, 2017. The Bibliothèque Alexis de Tocqueville will serve as the main library for the metropolitan region of Caen la Mer (in Normandy, France), with 12,000sqm of freely accessible multimedia space. Positioned on the tip of a peninsula that extends from the city to the English Channel, the site is part of a larger area of redevelopment. The ambition is for the library to become "a new civic center" for the city.

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French studio Lacaton & Vassal and Chilean studio UMWELT have been revealed as the recipients of the 2016 Lisbon Architecture Triennale's Lifetime Achievement Award and Début Award, respectively. An award ceremony will take place on the 15th November 2016 at the Centro Cultural de Belém (CCB), followed by a conference convened by Anne Lacaton and Jean-Philippe Vassal.

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