Plaça de Pius XII

Plaça de Pius XII is a major traffic circle in Barcelona, situated at the intersection of Avinguda Diagonal and several other thoroughfares. In the novel, it functions as a crucial navigational reference point during the climactic helicopter flight across the city. After escaping Sagrada Família, Langdon directs the pilot to fly over the wooded area north of the plaza, which leads them to the Royal Palace of Pedralbes and, critically, to the diamond-shaped city block behind it that houses the Barcelona Supercomputing Center. The plaza's prominence in the city's grid makes it an ideal landmark for the pilot to locate the supercomputing facility, which is housed in a decommissioned church on the block directly adjacent to the traffic circle. The area around Plaça de Pius XII is described as being well-lit, contrasting with the darker, forested grounds of the palace, and its broad, diagonal avenue provides a clear visual path for the helicopter's approach. The plaza itself is not a site of action but rather a spatial anchor that enables the protagonists to pinpoint Winston's physical location, a discovery that proves essential to their plan to broadcast Edmond Kirsch's presentation to the world.