AquaPraça Floating Plaza: A Landmark of Climate-Conscious Cultural Architecture

AquaPraça Floating Plaza, designed by Carlo Ratti Associati in collaboration with Höweler + Yoon Architecture, represents a pioneering example of adaptive, sustainable, and socially engaged architecture. Located in Belém, Brazil, the 400 m² platform floats on Guajará Bay, at the convergence of the Amazon River system and the Atlantic Ocean. The plaza adapts to daily tidal shifts of up to four meters, using Archimedes’ principle to maintain stability while offering an immersive human-scale experience of the environment.

Originally unveiled in Venice during the Biennale Architettura 2025, AquaPraça now functions as a key feature of Italy’s Pavilion at COP30, the United Nations Climate Change Conference. Constructed by Cimolai, a leading Italian steel construction company, the plaza was realized with international support from organizations including the Italian Ministry of Foreign Affairs, the World Bank’s Connect4Climate program, Bloomberg Philanthropies, ENEL, and Costa Crociere. Following COP30, AquaPraça will be permanently donated to Brazil, establishing a community spacefor climate awareness, cultural engagement, and creative industries.

The plaza functions as a floating agora, blending cultural programming, public discourse, and educational initiatives. Its sloping surfaces and shifting levels allow visitors to interact with the water, understand the impact of sea-level rise, and experience a tangible connection with natural systems. A central roof structure provides shelter and architectural identity while emphasizing adaptability and resilience in the face of climate challenges.

AquaPraça exemplifies the fusion of sustainability, technology, and social responsibility, creating a long-term legacy for Brazil and the global climate community. By merging engineering innovation with architectural excellence, the project demonstrates how floating infrastructure can serve both environmental education and cultural enrichment. The structure embodies circularity, as it has traveled from Venice to Belém, with the potential for continuous reuse and adaptation over time.

According to the architects and collaborators:

• Carlo Ratti emphasizes building with nature, extending Aldo Rossi’s dialogue from Venice to global environmental consciousness.
• Eric Höweler highlights the platform’s equilibrium, enabling visitors to experience the sea at eye level.
• J. Meejin Yoon underscores AquaPraça’s role in fostering collective understanding and solutions for climate adaptation.
• Cimolai’s Marco Sciarra reflects on the project’s challenge of rapid construction, engineering integration, and sustainable impact.

From 10 to 21 November 2025, AquaPraça served as Italy’s Pavilion at COP30. Afterwards, it will remain in the Amazon as a permanent floating cultural infrastructure, symbolizing resilience, sustainability, and global cooperation in the face of climate change.

All the Photographs are works of Leonardo Finotti, Peter White