Hidden Cities: London by Zupagrafika is an instant film inspired photo-box featuring architecture snapshots to unveil. Contains 8 interactive cards that resemble Polaroid 55 films - peel the negative apart and reveal the hidden city. Includes a foreword on London post-war modernist estates. Pictures are taken by Zupagrafika with a special contribution by Peter Chadwick (aka This Brutal House). The negatives are reusable: they can be removed and repositioned repeatedly.