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Central Concrete Tube and Oculus Connect Subterranean Exhibition Space with Natural Light

Authors:
Hankang Jin, Dinullah Bayu Ibrahim
Central Concrete Tube and Oculus Connect Subterranean Exhibition Space with Natural Light
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A central concrete tube and an oculus create a dynamic connection between subterranean exhibition spaces and natural light, facilitating a cultural hub for community interaction and engagement.
5 key facts about this project
01
A central concrete tube integrates structural and aesthetic elements, enhancing spatial connectivity.
02
An oculus allows natural light to illuminate subterranean exhibition areas, creating a dynamic atmosphere.
03
The design incorporates varied concrete textures, including polished and rough finishes, for visual interest.
04
Strategic openings throughout the structure facilitate seamless movement and interaction among visitors.
05
Natural wood finishes are utilized in key interior spaces to soften the overall architectural expression.

### Project Overview

Located in Piazza Galeno, the design integrates contemporary architectural expressions with elements drawn from Rome’s historical context, particularly reflecting the grandeur of the Pantheon. The intent is to create a dialogue that fosters interaction among culture, nature, and the human experience, inviting visitors to engage with both the structure and its surroundings.

### Spatial Arrangement and Connectivity

The multi-level configuration of the structure strategically utilizes subterranean spaces due to height limitations in the area. The layout encourages fluidity in movement and interaction:

- **Levels and Functions:**
- **Level 0** serves as a public urban space.
- **Level -1** functions as a transitional area leading to the main hall.
- **Level -2** accommodates a multifunctional hall and exhibition space.

A central concrete tube extends from the structure's apex down to its lowest level, fostering a seamless connection between above-ground and below-ground areas. The design includes carefully placed stairways to facilitate movement among levels and large openings that introduce natural light, enriching the internal environment.

### Material Selection and Aesthetic Details

The project employs a diverse palette of materials, enhancing its architectural expression:

- **Exterior and Interior Materials:**
- Polished precast concrete walls and floors provide durability and aesthetic appeal.
- Rough-brushed concrete walls feature integrated artistic textures.
- Concrete embedded with glass elements adds visual interest.
- Natural wood finishes are utilized in conference rooms and café areas to warm the interior atmosphere.

The material choices and textures contribute to a cohesive sensory experience, reflecting both the essence of Roman architecture and contemporary functional requirements.

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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.

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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