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Birefringent Acrylic Towers Merging Light and Dark in Icelandic Landscape

Authors:
Chee Yuen Choy, (amy) Shujun Liu, Jennifer Yang, Nicole Hekl
Birefringent Acrylic Towers Merging Light and Dark in Icelandic Landscape
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Composed of birefringent acrylic and cast-in-place concrete, the towers seamlessly blend into the Icelandic landscape, inviting visitors to explore the contrasts of light and dark through a dynamic architectural experience.
5 key facts about this project
01
Two towers represent the duality of Ice and Fire.
02
The suspension bridge adjusts to tectonic movements.
03
Birefringent acrylic creates unique light effects in the light tower.
04
The dark tower mimics Iceland's natural basalt formations.
05
Visitor journey emphasizes the contrast between sunlight and shadow.

"Dagr og Nótt" is situated in the distinct environment of Iceland, designed to represent the theme of duality through its exploration of opposites. The architecture illustrates the contrast between Ice and Fire, reflecting the island’s unique geological features. Two towers connect through a suspension bridge that adjusts itself, creating a dynamic relationship between the structures. Each tower provides a different experience for visitors, inviting engagement with the natural surroundings.

Design Concept

The concept behind "Dagr og Nótt" revolves around the interplay of light and dark. The dark tower welcomes visitors into a calm and quiet space, where soft lighting encourages reflection. In contrast, the light tower offers broad views that emphasize openness and connection to the landscape outside. This thoughtful transition between the two spaces symbolizes the movement between opposing states, reinforcing the theme of duality deeply rooted in the project.

Geological Context

Important to the design is its connection to Iceland’s geological characteristics, particularly the active tectonic landscape. The suspension bridge serves a significant role; it can self-adjust its length in response to movement in the ground below. This innovative functionality connects the structure to the natural environment, showing how the design integrates with the geological activity of the site, creating a dialogue between nature and construction.

Material Selection

Material choices throughout the project are carefully considered. The dark tower uses cast-in-place concrete, reflecting the natural basalt formations found throughout Iceland. This choice speaks to the area's geological history. The light tower, however, incorporates molten acrylic, designed to create interesting optical effects similar to the natural birefringence of calcite, a mineral well-known in the region. These materials enhance the visual experience while providing a tangible connection to the land.

Visitor Journey

Navigating through "Dagr og Nótt" offers an evolving visitor experience that highlights the contrasts between light and dark. Guests transition from the introspective atmosphere of the dark tower to the expansive views of the light tower, heightening their awareness of the surrounding landscape. Natural light is an important part of this experience, encouraging visitors to appreciate Iceland’s unique climatic variations.

The design culminates in an observation platform atop the light tower, where stunning views unfold. Here, visitors can take in the dramatic Icelandic landscape and connect with the natural beauty that surrounds them.

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Buildner's Unbuilt Award 2025
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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.

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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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