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Crystalline Structures Embracing Geothermal Energy in Iceland's Wilderness

Authors:
Takanao Todo, Yusuke Hattori, Saeko Aizawa
Crystalline Structures Embracing Geothermal Energy in Iceland's Wilderness
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Emerging from the Icelandic landscape, crystalline forms house geothermal energy systems, creating a visitor center that seamlessly integrates intimate bathing experiences with the region's natural and cultural heritage.
5 key facts about this project
01
Crystalline structures mimic natural ice formations in the landscape.
02
Geothermal energy systems provide sustainable heating and bathing.
03
Visitor center integrates with both public and private cave spaces.
04
Illumination design minimizes artificial light, highlighting natural phenomena.
05
Paths are designed with permeable materials to protect the terrain.

The Ginnungagap SAGA project is located in northern Iceland, around 70 km from Akureyri, in a landscape rich with geological history and cultural significance. The design captures the meeting of elemental forces—frost and heat—inspired by the region’s ancient myths. As a visitor center, it serves to connect guests with the natural environment while introducing them to the unique characteristics of Icelandic wilderness.

Site Context and Conceptual Framework

The project draws upon the ancient rift of Ginnungagap, representing a space where creation occurs. Crystalline forms rise from the land, echoing the area's geological history. The structure encourages exploration, inviting visitors to experience the narratives that the land holds. There is a clear connection between the architecture and the surrounding environment, enhancing the understanding of Iceland's past.

Visitor Experience and Functional Zoning

The design divides into distinct public and private areas, creating different experiences for visitors. The public section includes the Karlagja entrance, marked by an observatory that offers broad views of the landscape. This area hosts an exhibition space highlighting geothermal energy, showcasing the natural resources available in the region. Smaller buildings accommodate visitor services, including a café and restrooms, ensuring comfort and accessibility.

Private Spaces and Personal Engagement

The Kvennagja cave provides opportunities for a more personal experience. Visitors can reserve times for bathing in private settings. The design includes areas for waiting and changing, enhancing comfort while respecting the cave's natural form. This focus on individual interaction encourages visitors to connect with the environment in a meaningful way.

Sustainable Design Strategies

Choosing materials and employing environmental strategies are essential in this design. The project features a curtain wall similar to those used in traditional Icelandic greenhouses, while private areas include an inner concrete layer that maximizes thermal efficiency. A binary electric generator captures geothermal energy, providing heat for bathing and other uses. Paths are created with granulated sand and permeable concrete to minimize disruption to the land while ensuring strength against frost damage.

Light and texture play a significant role in the overall design. Natural light is prioritized, reducing the need for artificial illumination throughout the site. The crystal-like structures glow softly at night, enhancing the connection between the built environment and the natural wonders that surround it.

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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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