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Scoria Walls Bridging Tectonic Plates Within a Geothermal Visitor Center

Authors:
Mario Rodríguez, Meng Li
Scoria Walls Bridging Tectonic Plates Within a Geothermal Visitor Center
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Positioned between tectonic plates, the structure utilizes scoria for its walls, embodying local geological identity while functioning as a visitor center that offers unique views of the surrounding geothermal landscape.
5 key facts about this project
01
Positioned between the Eurasian and North American tectonic plates.
02
Constructed with local scoria for thermal efficiency and environmental harmony.
03
Features zigzagging stair patterns that reflect traditional Icelandic knitting.
04
Includes observation areas specifically designed for viewing the aurora borealis.
05
Elevated pathways minimize disruption to the surrounding volcanic landscape.

The Stitch Tower is located on the northeast coast of Iceland, near Lake Mývatn. It is set in a distinctive volcanic landscape marked by geological activity. The design centers around the unique position of the tower, which sits between the Eurasian and North American tectonic plates. This creates a visual connection between the two continents. The building functions as a visitor center, offering various amenities and observation points that encourage guests to appreciate the surrounding nature.

Architectural Language

The design draws inspiration from Icelandic culture, particularly the practice of knitting, which is an important part of local life. The zigzagging stairs of the tower are reminiscent of knitting patterns, linking cultural expressions with the architecture itself. This thoughtful approach helps in organizing the space and guiding visitors as they move through the structure, creating a sense of place that reflects the community’s traditions.

Materiality and Sustainability

Material choice is significant in the Stitch Tower's construction. It utilizes scoria, a type of lava rock found locally, for the walls. This material connects the building to its geological setting and provides thermal efficiency. By using scoria, the project reduces the environmental footprint associated with transporting construction materials, highlighting a commitment to sustainability and local resources.

Integration with the Landscape

Designed to minimize its impact on the surrounding terrain, the Stitch Tower features pathways that are elevated on posts. This approach preserves the natural layout of the landscape, allowing for an uninterrupted view of the area. Visitors experience the environment more fully while walking along these raised paths. This careful integration reinforces the relationship between the building and its striking natural setting.

Observation and Experience

The Stitch Tower includes observation areas for viewing the aurora borealis, a natural light display common in this region. The top of the structure features a circular window that provides clear views of the sky. This design detail invites visitors to connect with the natural world above them. Through its thoughtful geometry and placement, the building serves as a point of interest in Iceland’s captivating landscape.

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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.

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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