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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 Next House: USA — A Global Call to Reimagine the American Suburb

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Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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