What will happen at the UIA World Congress of Architecture?

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The 1996 congress of the International Union of Architects (UIA) in Barcelona left the memorable image of Plaça dels Àngels transformed into a grand stage to welcome a string of star architects including Jacques Herzog, Norman Foster, Peter Eisenman (who wore a Barça jersey) and Daniel Liebeskind. Thirty years later, this Sunday Barcelona will become the first city to host the congress twice. In these three decades, the sector has changed profoundly: at the time, the Guggenheim Museum in Bilbao, an emblem of iconic architecture, was still a year away from its inauguration; today, architects are fully involved in the great social and environmental challenges.