Its 2012 edition awarded to Chinese architect Wang Shu, the Pritzker Architecture Prize is the most coveted award among architects, but it does not appear to offer sufficient guarantees for the preservation of their works.

In the March issue of the magazine, Domus visits two cities where the projects of prizewinning architects lie in ruins: in Porto, buildings by Álvaro Siza and Eduardo Souto de Moura lie in decay and disrepair, victims of the current economic crisis.

In São Paulo, Paulo Mendes da Rocha's Galeria Leme has recently been destroyed to be rebuilt, as a result of a real-estate boom.

We tracked down other examples: the American Center by Frank Gehry, abandoned after two years; the wall surrounding Richard Meier's Museu dell'Ara Pacis, and the Casa Evolutiva by Renzo Piano, both risking demolition.

The maps below, divided by the oceans that separate them, show a selection of buildings by Pritzker Prize winners that have been demolished over time or have undergone total or partial alterations.