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Joining Copenhagen and Rio de Janeiro, Barcelona has been named as the UIA’s 2026 World Capital of Architecture by UNESCO, and will be hosting the International Union of Architect’s World Congress two years after the event in Copenhagen. Barcelona and Beijing were both contenders for the 2026 title, but the Catalan city took the lead with its winning bid titled “One today, one tomorrow”, which explores the city’s approach to sustainability and the future of the built environment.