Roarc Renew   China   In marshy land on the outskirts of Shanghai, a new exhibition gallery takes up two granaries that were in disuse. Added corridors form wings arranged in radical symmetry. The auxiliary spaces take up two volumes that stretch parallel to the preexisti

On marshland where lotus plants abound, a pair of mid-20th-century granaries that were in disuse have been brought back to life as a 2,448-square-meter art exhibition gallery, thanks to a project carried out by the Shanghai-based firm Roarc Renew, wh