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Bridging Geological Cracks with Reinforced Concrete and Modular Pathways

Authors:
Bruno Paschmann, Christoph Zacharski
Bridging Geological Cracks with Reinforced Concrete and Modular Pathways
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An elongated structure of reinforced concrete spans a geological crack, integrating a modular pathway system that connects private and public cave environments, serving as an inviting visitor center in Iceland's unique landscape.
5 key facts about this project
01
An elongated form allows for panoramic views of the surrounding Icelandic landscape.
02
The modular pathway system is inspired by the flexibility of the human spine.
03
Uses reinforced concrete to navigate the geological challenges of the site.
04
Distinct separation between private and public areas enhances visitor experience.
05
Ascends to a higher viewpoint, acting as a bridge over the geological crack.

The project explores the connection between geological forces and human experiences within Iceland’s unique landscape. Located near the North American and Eurasian tectonic plates, it introduces the concept of the “PUZZLE.” This concept represents a way to bridge gaps created by geological movements. The building serves as a visitor center, linking the private Kvennagjá cave and the public Karlagjá caves, allowing visitors to engage closely with the natural surroundings.

Modular Path System

A modular path system is central to the design, inspired by the flexibility of the human spine. This design connects different components in a way that promotes movement. As visitors walk along the path, they navigate between different areas of the caves, experiencing the contrasting environments. The system not only guides individuals through the space but also fosters a stronger connection to the surrounding geology. This interactive quality makes the path an essential part of the overall design.

Spatial Organization

Inside the PUZZLE house, spaces are thoughtfully arranged to serve multiple functions while keeping a clear architectural identity. A main distribution point allows easy access to various areas, such as a café, an observation platform, and changing rooms. This layout effectively meets the needs of visitors. Distinct private and public zones enhance user experience, balancing openness with moments of quiet. The design encourages exploration and interaction throughout the building.

Building Form and Materiality

The building has an elongated form that visually connects with the Icelandic landscape. The generous heights provide broad views, linking the structure to its environment. Materials mentioned in the project include reinforced concrete for strength, elastomer bearings for flexibility, and load distribution plates for stability. These materials respond to the geological conditions, ensuring that the structure remains secure and resilient. They contribute to creating a respectful relationship with the surrounding land.

A distinctive staircase ascends to a higher level, designed as a bridge above the geological crack. This feature invites visitors to climb and enjoy unobstructed views of the landscape. Treated as an outdoor space, the staircase emphasizes the connection between people and nature. The integration of form, structure, and context supports a sense of discovery, making it an inviting place for interaction with Iceland’s remarkable geography.

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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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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.

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

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
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Final registration deadline 30 October 2025

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