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Exploring Geological Boundaries with Two Masses of Wood and Concrete

Author:
Chris Rabey
Exploring Geological Boundaries with Two Masses of Wood and Concrete
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Two distinct masses, crafted from wood and concrete, emerge from the geological landscape of Grjótagjá, creating a welcome center and observation tower that connects visitors to the unique tectonic forces of this Icelandic site.
5 key facts about this project
01
Two distinct building masses symbolize geological forces at play.
02
The design incorporates an enclosed glass void to enhance light interaction.
03
Strategically placed to revitalized the surrounding landscape impacted by visitor traffic.
04
Paths guide visitors directly to key attractions, optimizing movement flow.
05
Solar-powered LED fixtures illuminate the walking path, ensuring accessibility.

Divergence is a welcome center and observation tower located at the Grjótagjá cave system, which exists along the divergent boundary of the Eurasian and North American tectonic plates. The design responds to the geological features of the area, acting as a gateway for visitors while connecting architecture to the landscape. The concept reflects the natural forces at work, seen through the separation of the building into two distinct masses that enhance the spatial experience.

Architectural Composition

The overall design embodies the geological dynamics of the site. The two masses extend from the landscape, creating a central void that allows natural light to flow inside while maintaining a view of the surroundings. This void is surrounded by glass, which encourages interaction between the interior and the natural world, highlighting the site’s unique geological heritage.

Material Selection

Material choices are essential in supporting the project’s vision. Wood is widely used throughout the welcome center due to its practicality and adaptability. Concrete also features prominently, imitating the geological textures found in the area. These materials serve to reinforce the connection between the building and its environment, grounding it in its geological context.

Spatial Organization

The layout of Divergence is carefully considered, blending public and administrative areas in an efficient manner. High-traffic spaces are situated within the observation tower, encouraging engagement from visitors, while more private administrative functions are positioned thoughtfully to the left. Two distinct paths guide visitors from the parking area, leading them through the building's central axis and toward various attractions, simplifying movement and exploration.

Walking Path Module

A notable aspect of the design is the walking path module, which is crafted to have minimal impact on the landscape. Its slender form hovers just above the ground, creating occasional points of contact that connect it to the earth. With solar-powered LED fixtures illuminating the path, accessibility is ensured during the shorter days of winter. This approach combines functionality with a clear aesthetic, enhancing the overall experience for those who visit.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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