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Cave-Inspired Structure with Solid Walls Enhancing Pedestrian Connectivity

Authors:
Guanghui Lu, Bowen Zuo, Jizhao Peng
Cave-Inspired Structure with Solid Walls Enhancing Pedestrian Connectivity
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The underground section mimicking natural caves, combined with solid walls, creates an engaging bridge that enhances pedestrian connectivity while enriching the cultural experience in Sigulda, Latvia.
5 key facts about this project
01
The bridge incorporates an underground section resembling natural cave formations.
02
Solid walls blend with the landscape to reflect the region's historical context.
03
A nighttime botanical garden enhances user engagement with the environment.
04
Observation platforms provide varied perspectives of the surrounding natural beauty.
05
The design prioritizes barrier-free accessibility for all visitors.

In Sigulda, Latvia, a new bridge design merges with the natural beauty of Gauja National Park. The structure serves two main functions: it acts as a pathway for pedestrians and also provides an engaging educational space. By integrating elements of a mini museum, the design connects visitors with the area's cultural and historical context, establishing a dialogue between the environment and the past.

Design Concept

The bridge incorporates an underground section that resembles natural caves, creating a unique spatial experience. Visitors can explore this area, promoting interaction with the surroundings. Above ground, the bridge connects significant sites such as Spieķu Parks and the Sigulda Evangelic Lutheran Church. This careful positioning encourages people to traverse the area, enhancing their understanding of the landscape and its features.

Spatial Dynamics

The design leverages differences in elevation to create varied experiences for users. Elevated platforms and viewing points invite visitors to appreciate the scenic vistas while ensuring accessibility. The inclusion of a nighttime botanical garden and a Green Tower serves both practical and aesthetic purposes. These elements enrich the environment and help raise awareness of local ecology, creating a multifunctional space for all.

Materiality and Integration

Solid walls and landscape features are key components of this project. They blend with the site, reflecting the historical significance of the region. By emphasizing natural textures, the bridge creates a connection between the structure and its surroundings. It invites users to engage with both the architecture and the landscape, fostering a deeper appreciation for the area.

Elevating the Design Experience

Attention to detail is evident throughout the structure. Textured surfaces evoke a connection to the natural environment, enhancing the overall sensory experience. Light interacts with the materials, creating a shifting visual landscape that alters with the time of day. Each visit presents a new perspective, allowing users to engage with nature in diverse ways that enrich their experience of the site.

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

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Competition organisers

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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