You may not know it but there's a hidden landscape of tunnels, abandoned offices and canals right beneath your feet when you walk through Manchester, as these ten images from Keith Warrender reveal. You can find more in his books, 'Underground Manchester' and 'Below Manchester', both from Willow Publishing.
Going underground in Manchester
Ten haunting images showing the secret underground world beneath Manchester's streets
Images of Manchester above ground
Remember when Piccadilly Gardens had actual, er, gardens? Take a look at some of the highlights from Manchester Metropolitan University's archives and get nostalgic about how the city used to be.
Discover Time Out original video