When Barcelona prepared for the 1992 Olympic Games, it didn't build one city. It built several. There is one that we all know. There is another that we have almost forgotten. Two extraordinary urban operations. Two radically different destinies. And, paradoxically, two stories that speak to us of the same failure.A few days ago, during a visit organized by the Group of Architects for the Defense and Intervention in Architectural Heritage (AADIPA), we toured the Olympic area of Vall d'Hebron again. More than visiting some buildings, we rediscovered an extraordinarily modern idea of a city that, thirty-four years later, seems to have been abandoned by those who were supposed to continue making it grow. Eduard Bru's urbanism was not a finished project. It was an open structure, capable of evolving over time, which aimed to reconnect Barcelona with Collserola. Elevated walkways that transformed into balconies over the city, pergolas that generated shade and public space, platforms that stitched together the sports facilities, and a landscape designed so that greenery and water would give it meaning. It was an urbanism that trusted in the future. But that future never arrived.The uses were not completed. The spaces were not consolidated. The ensemble was not maintained. And what was to become one of Barcelona's great gateways to Collserola has too often ended up becoming an inhospitable landscape, where vandalism has replaced life and where abandonment has slowly erased the original project. And yet, the architecture continues to be moving.The Palau Olímpic de la Vall d’Hebron, a work by Jordi Garcés and Enric Sòria, continues to surprise more than three decades later. Externally, it is a large brick volume, almost a fortress, with a solidity that seems immune to the passage of time. It is difficult to imagine that behind that apparent simplicity lie two sports pavilions. But it is precisely inside where the architecture unfolds all its sensitivity. The long access corridor, between the pelota courts, culminates in a large stained-glass window that frames the three chimneys of Sant Adrià and turns that end of the route into an authentic balcony over Barcelona. At the other end, the handball pavilion is an immense cube of air where a reticulated roof lets in light with unexpected delicacy, which seems to stop time and makes the roof levitate above the brick walls. An austere and silent architecture that continues to excite because its quality does not depend on trends.