Urban memories: share your old photos of cities around the world

From lost buildings to transformed neighbourhoods, share your pictures and memories of the changing landscapes of cities with GuardianWitnessSince its birth in the 19th century, photography has captured the development of cities around the world, documenting the often huge changes in the urban landscape. UrbanPhotoFest, an annual photographic arts festival focusing on cities and urban spaces, kicks off in London on 3 November. “We believe that photography plays an important role in opening